{"title":"Mufflers","description":"\u003ch3\u003eSemi Truck Mufflers and fine durable Semi Stacks\u003c\/h3\u003e\n\u003ch4\u003eShop Truck Mufflers \u0026amp; Semi Stacks from Iowa 80\u003c\/h4\u003e\n\u003cp\u003eCruising down the road, those shiny exhaust stacks can make your rig stand out. Their sleek look hides an imperative function to keep your truck running smoothly. They alone aren’t the only part that makes a difference to performance. Semi truck \u003ca href=\"\/products\/performance-shorty-30-muffler\"\u003emufflers\u003c\/a\u003e are an essential element to reduce exhaust noise and boost efficiency.\u003c\/p\u003e\n\u003cp\u003eIf your truck is starting to get louder, it may be time for a new muffler. Other signs of a faulty muffler may include decreased fuel economy and increased odors. Whether its time to replace or you simply want to upgrade, we have an array of stock to help you find just what you need. Like other accessories, mufflers can also look good while they work.\u003c\/p\u003e\n\u003ch4\u003eA Part for Every Truck \u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003eFor those who seek high performance, a semi truck \u003ca href=\"\/products\/5-inlet-outlet-high-flow-muffler-51l\"\u003ehigh flow muffler\u003c\/a\u003e can help reduce fuel consumption, making each trip more efficient. Need to match your flashy stacks? A chrome muffler provides heavy duty protection with style. We also have stainless steel parts designed for minimal back pressure drop.\u003c\/p\u003e\n\u003cp\u003eIs your straight pipe unruly? We have \u003ca href=\"\/products\/performance-sport-stack-muffler-51-5l\"\u003eperformance stacks\u003c\/a\u003e that not only dampen harsh sounds but also provide improved response and can boost horsepower. Under-cab mufflers are also available to help you get the best out of your rig, as well as steel inlet\/outlet styles in array of sizes. Our quality mufflers fits most engine exhaust systems and are designed to last.\u003c\/p\u003e\n\u003ch4\u003eOther Accessories \u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003eFor those trucks that pack an extra bang, we offer an array of resonators to help control the noise. Many offer a reduction of 3 to 6 decibels if added before installing the muffler. Most are made of durable steel that resists rust and come in different sizes.\u003c\/p\u003e\n\u003cp\u003eWhen talking about semi truck exhaust systems, it can be too easy to just think about stacks. That, however, is only one part of your truck's exhaust. At Iowa80.com, we carry a vast collection of various exhaust parts and accessories, which includes Mufflers. Built to the highest quality standards, we support each and every exhaust part we deliver.\u003c\/p\u003e\n\u003cp\u003eFor more options, we ask you to take a moment to check out our thorough range of semi truck exhaust at Iowa80.com today.\u003c\/p\u003e","products":[{"product_id":"6d-quiet-performance-internal-muffler","title":"6\"D Quiet Performance Internal Muffler","description":"\u003cp\u003eInternal mufflers are designed for straight stacks. Muffler slips into the bottom of the stack and bolts into place. Template and stainless steel hardware are included.   Not designed to work with emission equipped engines, or for stacks with a built-in reducer.  Body length is 45\". Fits 6\" diameter dual stacks. Works on dual exhaust only. Aluminized steel.  Sold individually.\u003c\/p\u003e\r\n\u003cp\u003e* 2 holes must be drilled into the stack to secure the insert.  \u003c\/p\u003e\r\n\u003cp\u003eFor maximum performance,  this muffler is recommended for the following engines:\u003c\/p\u003e\r\n\u003ctable style=\"height: 192px;\" width=\"324\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e\r\n\u003cp\u003eEngine Size\u003c\/p\u003e\r\n\u003cp\u003eLITER\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e\r\n\u003cp\u003eEngine Size\u003c\/p\u003e\r\n\u003cp\u003eCU INCH\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.688px;\"\u003eHP Range\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e12.7L\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e745\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.688px;\"\u003e350+\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e13L\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e794\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.688px;\"\u003e350+\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e14L\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e855\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.688px;\"\u003eANY\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e14.6L\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e892\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.688px;\"\u003eUP TO 350\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e14.6L\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e892\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.688px;\"\u003e350+\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e14.7L\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e898\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.688px;\"\u003eUP TO 350\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e14.7L\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.656px;\"\u003e898\u003c\/td\u003e\r\n\u003ctd style=\"width: 100.688px;\"\u003e350+\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e  \u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51843996614978,"sku":"129733","price":728.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/129733a.jpg?v=1768567012"},{"product_id":"muffler-shield-stack-clamp-for-270-deg-guard","title":"Muffler Shield Stack Clamp for 270 Degree Guard","description":"Clamp for use on 270° (3\/4 wrap) muffler guards only.\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMounting hardware included\u003c\/li\u003e\n\u003cli\u003e10\" diameter\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DYNAFLEX PRODUCTS","offers":[{"title":"Default Title","offer_id":51844013064514,"sku":"137606","price":116.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/137606.jpg?v=1768567496"},{"product_id":"5d-x-52l-lower-stack-with-quiet-muffler-exp-end","title":"5\"D x 52\"L Lower Stack with Quiet Muffler Exp. End","description":"Lower stack with quiet muffler insert has a taper lock top and 5\"ID expanded end bottom. Lower stack fits between the top stack and elbow to create a complete stack. Taper Lock design gives you a seamless fit and the flexibility to replace specific parts instead of the entire stack. These \u003cb\u003esemi truck stacks\u003c\/b\u003e measure 5\" dia x 52\"L. The 52\" lower stacks fit most Peterbilt 379, Kenworth W900L, Freightliner, and Western Star models. One year manufacturer's warranty. \u003cbr\u003eSold individually. \u003cbr\u003e\u003cbr\u003e","brand":"DYNAFLEX PRODUCTS","offers":[{"title":"Default Title","offer_id":51844133060930,"sku":"165301","price":400.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/165301.jpg?v=1768569564"},{"product_id":"5-inlet-5-intlet-chrome-muffler-51l","title":"5\" Inlet\/5\" Intlet Chrome Muffler 51\"L","description":"\u003cp\u003eGrand Rock chrome 6\" diameter muffler.  51\" long overall, 38.4\" long body, 6\" diameter muffler with 5\" inlet diameter, 5\" inlet diameter chrome muffler.  Internal louverd core, not very quiet.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e51\"L, 38.4\" body length\u003c\/li\u003e\n\u003cli\u003e6\" body diameter, 5\" inlet\/5\" inlet\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51844158783810,"sku":"172599","price":635.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/172599a.jpg?v=1768570194"},{"product_id":"performance-straight-flow-stack-muffler","title":"Performance Straight Flow Stack Muffler","description":"\u003cp\u003eStraight flow mufflers cancel out soundwaves by directing them into one another to absorb sound energy without added restriction. Up to 50 additional horsepower, improved throttle response and lower exhaust gas temperatures. Improves fuel mileage and power. 51.5\" total length x 10\" diameter. Designed to go up the side or rear of the cab. This muffler creates no back pressure, which allows for an average gain of 1\/4 mile per gallon. Since the flow is not restricted, the muffler gathers no soot causing soot levels in the engine oil to decrease. 5\"ID inlet and outlet. Fits all class 8 trucks with 5\" stacks. \u003cbr\u003eSold individually. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eNOTE: Not suitable for use on trucks with DPF systems. Not intended for use on CAT Acert engines. Not to be used to replace any exhaust aftertreatment, like DPF or catalyic converter.\u003c\/b\u003e \u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"PITTSBURGH POWER","offers":[{"title":"Default Title","offer_id":51844192960834,"sku":"185828","price":277.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/185828.jpg?v=1768571699"},{"product_id":"kenworth-w900-under-cab-performance-muffler","title":"Kenworth W900 Under-Cab Performance Muffler","description":"\u003cdiv\u003e\n\u003cdiv\u003eFuel economy is important for standard passenger vehicles, and when it comes to your rig, its even more critical. This Kenworth W900 muffler is an under-cab model that improves performance over your standard reverse-flow muffler. You can gain up to 50 HP and up to 1\/4 MPG in fuel mileage. And who doesn't want that?\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eFree-flow, straight-through construction\u003c\/li\u003e\n\u003cli\u003ePerforated tube helps dampen noise\u003c\/li\u003e\n\u003cli\u003e1 Year 100,000 mile warranty\u003c\/li\u003e\n\u003cli\u003eFabricated from aluminized steel\u003c\/li\u003e\n\u003cli\u003eInlet: 5 inches\u003c\/li\u003e\n\u003cli\u003eOutlet: 5 inches\u003c\/li\u003e\n\u003cli\u003eDimensions: 64\"L x 12\"W\u003c\/li\u003e\n\u003cli\u003eQuiet clamps included\u003c\/li\u003e\n\u003cli\u003eFits KW W900 models 2007 and older\u003c\/li\u003e\n\u003cli\u003eSold individually \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cstrong\u003eNOTE: Not for use with DPF systems. Not for use on any truck 2008 and newer. Not for use on CAT Acert engines because of the catalytic converter that cannot be removed.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"PITTSBURGH POWER","offers":[{"title":"Default Title","offer_id":51844193026370,"sku":"185832","price":758.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/185832.jpg?v=1768571703"},{"product_id":"performance-sport-stack-muffler-51-5l","title":"Performance Sport Stack Muffler 51.5\"L","description":"\u003cp\u003eThe Performance Sport flow through muffler uses acoustic louver sound dampening and is noticeably louder than other Quiet Performance mufflers. Dampens harsh tones that can be heard with straight pipes. Gain up to 50 additional horsepower and improved response. Lower exhaust gas temperatures and get a fast return on your investment by gaining fuel mileage. Extra heavy duty construction. Universal fit for most trucks. 40 lb. 5\" inlet, 5\" outlet, 51.5\" long, 10\" diameter. \u003cbr\u003eSold individually. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eNOTE: Not suitable for use on trucks with DPF systems. Not intended for use on CAT Acert engines. Not to be used to replace any exhaust aftertreatment.\u003c\/b\u003e \u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"PITTSBURGH POWER","offers":[{"title":"Default Title","offer_id":51844287594818,"sku":"200440","price":301.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/200440.jpg?v=1768575919"},{"product_id":"5-inlet-outlet-high-flow-muffler-51l","title":"5\" Inlet\/Outlet High Flow Muffler 51\"L","description":"Use less fuel and improve your bottom line with a high flow stock replacement muffler. Standard 5\" I.D. and O.D. 10\"D x 44.5\"L body. 51\" total length. 3% minimum gain in MPG guaranteed. Easy installation, bolts in place. Heavy gauge, 100% welded construction. No turbo lag, faster acceleration. Highest CFM flow of any muffler. Quiet as a 10\" stock muffler when driving and accelerating. Meets Federal and California noise level requirements. Works on all engines including ISX, 3406E, and 14L series 60. \u003cb\u003eMount vertically, for use on dual exhaust only.\u003c\/b\u003e\u003cbr\u003eSold individually. \u003cbr\u003e\u003cbr\u003eNOTE: This muffler is not legal on DEF exhaust systems because it does not have a particulate filter.","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51844298441026,"sku":"202364","price":618.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/202364.jpg?v=1768576172"},{"product_id":"kenworth-5d-aero-muffler-replacement","title":"Kenworth 5\"D Aero Muffler Replacement","description":"\u003cp\u003eKenworth aluminized U-Pipe replaces the large muffler \u003ca href=\"\/pd\/muffler-5-id-id-type-3\/429231\/\"\u003eitem 429231\u003c\/a\u003e.  \u003cbr\u003e5\"ID\u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51844707254594,"sku":"228656","price":145.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/228656.jpg?v=1768579078"},{"product_id":"performance-shorty-30-muffler","title":"Performance Shorty 30\" Muffler","description":"\u003cp\u003eThis Pittsburgh Power Performance Shorty muffler increases performance and fuel mileage by reducing exhaust back-pressure. \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e5\" inlet, 5\" outlet, 10\" wide, 30\" overall length\u003c\/li\u003e\n\u003cli\u003eTesting shows as much as a 50 HP increase and a 1\/4 mile per gallon improvement\u003c\/li\u003e\n\u003cli\u003eMuffler uses Acoustic Louver Sound Dampening\u003c\/li\u003e\n\u003cli\u003eUp To 50 additional Horsepower and improved response\u003c\/li\u003e\n\u003cli\u003eLower exhaust gas temperatures\u003c\/li\u003e\n\u003cli\u003eExtra heavy duty construction\u003c\/li\u003e\n\u003cli\u003e1 year, 100,000 mile warranty\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e","brand":"PITTSBURGH POWER","offers":[{"title":"Default Title","offer_id":51844919329090,"sku":"270938","price":295.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/270938a.jpg?v=1768584476"},{"product_id":"quiet-muffler-insert-for-8-stacks","title":"Quiet Muffler Insert for 8\" Stacks","description":"Keep it quiet! This aluminized muffler insert will decrease your noise output. Inserts in 8\" stacks. 38\" Length. 7 7\/8\" O.D. Muffler must be forced into the stack from the bottom with substantial pressure. Accepted as highway mufflers by the California Highway Patrol (CHP). They are in compliance with the Heavy Duty Trucks noise limits mandated by paragraph 27204 of the California Vehicle Code. Can be used on single or dual exhaust stacks. Free flow, does not effect back pressure. Lowers decibels by 12-15 DBA.\u003cbr\u003eSold individually. \u003cbr\u003e\u003cbr\u003eNot intended for use with DPF systems. \u003cbr\u003eInstallation note: The end with the most perforated holes goes towards the bottom. Muffler should sit inside the stack as shown in the picture.","brand":"DYNAFLEX PRODUCTS","offers":[{"title":"Default Title","offer_id":51845993038146,"sku":"38973","price":203.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/38973.jpg?v=1768639154"},{"product_id":"5-inlet-outlet-aluminized-muffler-44-5l","title":"5\" Inlet\/Outlet Aluminized Muffler 44.5\"L","description":"\u003cp\u003eAluminized muffler for economy trucks.\u003c\/p\u003e\n\u003cp\u003e51\" long overall, 44.5\" long body, 10\" diameter muffler with 5\" inner diameter Inlet\/Outlet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e Not to be used on emission-equipped trucks.  \u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846231884098,"sku":"427488","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/427488.jpg?v=1768648895"},{"product_id":"international-5d-6d-u-pipe-muffler","title":"International 5\"D - 6\"D U-Pipe Muffler","description":"\u003cdiv class=\"ewa-rteLine\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eInternational aluminized U-Pipe muffler.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"ewa-rteLine\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e5\"ID - 6\"ID\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"ewa-rteLine\"\u003e  \u003c\/div\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846238241090,"sku":"429110","price":254.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/429110a.jpg?v=1768649257"},{"product_id":"5-inlet-outlet-aluminized-muffler-44-5l-1","title":"5\" Inlet\/Outlet Aluminized Muffler 44.5\"L","description":"\u003cp\u003eAluminized muffler\u003c\/p\u003e\n\u003cp\u003e51\" long overall, 44.5\" long body, 10\" diameter muffler with 5\" inner diameter Inlet\/Outlet.\u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846240239938,"sku":"429229","price":247.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/429229.jpg?v=1768649342"},{"product_id":"4-inlet-outlet-aluminized-muffler-36l","title":"4\" Inlet\/Outlet Aluminized Muffler 36\"L","description":"\u003cp\u003eAluminized muffler\u003c\/p\u003e\r\n\u003cp\u003e43\" long overall, 36\" long body, 11\" diameter muffler with 4\" inner diameter Inlet\/Outlet.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eNOTE\u003c\/strong\u003e: Fits Freightliner SB.   \u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846240403778,"sku":"429230","price":336.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/429230a.jpg?v=1768649345"},{"product_id":"5-inlet-outlet-aluminized-muffler-44l","title":"5\" Inlet\/Outlet Aluminized Muffler 44\"L","description":"\u003cp\u003eAluminized muffler\u003c\/p\u003e\r\n\u003cp\u003e48\" long overall, 44\" long body, 10 x 15\" diameter muffler with 5\" inner diameter Inlet\/Outlet.\u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846240436546,"sku":"429231","price":612.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/429231.jpg?v=1768649348"},{"product_id":"4-inlet-outlet-aluminized-muffler-32l","title":"4\" Inlet\/Outlet Aluminized Muffler 32\"L","description":"\u003cp\u003eAluminized muffler\u003c\/p\u003e\r\n\u003cp\u003e36.5\" long overall, 32\" long body, 8.25 x 11.5\" diameter muffler with 3.5\" inner diameter Inlet, 4\" inner diameter Outlet.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e Fits International SB.   \u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846240469314,"sku":"429232","price":254.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/429232a.jpg?v=1768649352"},{"product_id":"quiet-muffler-insert-for-6-stacks","title":"Quiet Muffler Insert for 6\" Stacks","description":"Keep it quiet! This aluminized muffler insert will decrease your noise output. Inserts in 6\" stacks. 38\" Length. 5 7\/8\" O.D. Muffler must be forced into the stack from the bottom with substantial pressure. Accepted as highway mufflers by the California Highway Patrol (CHP). They are in compliance with the Heavy Duty Trucks noise limits mandated by paragraph 27204 of the California Vehicle Code. Can be used on single or dual exhaust stacks. Free flow, does not effect back pressure. Lowers decibels by 7-9 DBA.\u003cbr\u003eSold individually. \u003cbr\u003e\u003cbr\u003eNot intended for use with DPF systems. \u003cbr\u003eInstallation note: The end with the most perforated holes goes towards the bottom. Muffler should sit inside the stack as shown in the picture.","brand":"DYNAFLEX PRODUCTS","offers":[{"title":"Default Title","offer_id":51846854410562,"sku":"45344","price":195.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/45344.jpg?v=1768666738"},{"product_id":"4-inlet-5-outlet-aluminized-44-5l-muffler","title":"4\" Inlet\/5\" Outlet Aluminized 44.5\"L Muffler","description":"\u003cp\u003e44-1\/2\" aluminized muffler with 4\" inlet and 5\" outlet.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e44-1\/2\" long body, 51\" long overall\u003c\/li\u003e\r\n\u003cli\u003e9\" diameter\u003c\/li\u003e\r\n\u003cli\u003e4\" inlet and 5\" outlet\u003c\/li\u003e\r\n\u003cli\u003eMade in USA\u003c\/li\u003e\r\n\u003cli\u003eSold individually\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846955663682,"sku":"454974","price":247.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/454974a.jpg?v=1768670729"},{"product_id":"10-x-36-4-id-aluminized-muffler","title":"10\" x 36\", 4\" ID Aluminized Muffler","description":"\u003cp\u003e10\" x 36\"L, 4\" ID aluminized muffler with universal end-in, side-out muffler that also accommodates side-in, end-out option. Place the outlet anywhere you need.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4\" ID muffler good for motors up to 10 liters\u003c\/li\u003e\n\u003cli\u003eMuffler is 16 gauge aluminized construction\u003c\/li\u003e\n\u003cli\u003eSaves on muffler inventory costs\u003c\/li\u003e\n\u003cli\u003eOutlet adapter sold separately\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* Get your outlet adapter:\u003c\/p\u003e\n\n\u003cp\u003e** Custom piece can't be returned\u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846971130178,"sku":"455467","price":308.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/arg_muffler_1_1.jpg?v=1768671079"},{"product_id":"10-x-36-5-id-aluminized-muffler","title":"10\" x 36\", 5\" ID Aluminized Muffler","description":"\u003cp\u003e10\" x 36\"L, 5\" ID aluminized muffler with universal end-in, side-out muffler that also accommodates side-in, end-out option. Place the outlet anywhere you need.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5\" ID muffler good for motors up to 10 liters\u003c\/li\u003e\n\u003cli\u003eMuffler is 16 gauge aluminized construction\u003c\/li\u003e\n\u003cli\u003eSaves on muffler inventory costs\u003c\/li\u003e\n\u003cli\u003eOutlet adapter sold separately\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* Get your outlet adapter:\u003c\/p\u003e\n\n\u003cp\u003e** Custom piece can\"™t be returned\u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846971326786,"sku":"455468","price":308.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/arg_muffler_1_2.jpg?v=1768671083"},{"product_id":"10-x-36-5-od-aluminized-muffler","title":"10\" x 36\", 5\" OD Aluminized Muffler","description":"\u003cp\u003e10\" x 36\"L, 5\"OD aluminized muffler with universal end-in, side-out muffler that also accomodates side-in, end-out option. Place the outlet anywhere you need.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5\" OD muffler good for motors up to 10 liters\u003c\/li\u003e\n\u003cli\u003eMuffler is 16 gauge aluminized construction\u003c\/li\u003e\n\u003cli\u003eSaves on muffler inventory costs\u003c\/li\u003e\n\u003cli\u003eOutlet adapter sold separately\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* Get your outlet adapter:\u003c\/p\u003e\n\n\u003cp\u003e** Custom piece can\"™t be returned\u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846971523394,"sku":"455469","price":308.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/arg_muffler_1_3.jpg?v=1768671087"},{"product_id":"10-x-36-3-1-2id-aluminized-muffler","title":"10\" x 36\", 3-1\/2\"ID Aluminized Muffler","description":"\u003cp\u003e10\" x 36\"L, 3-1\/2\"ID aluminized muffler with universal end-in, side-out muffler that also accomodates side-in, end-out option. Place the outlet anywhere you need.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3-1\/2\" ID muffler good for motors up to 10 liters\u003c\/li\u003e\n\u003cli\u003eMuffler is 16 gauge aluminized construction\u003c\/li\u003e\n\u003cli\u003eSaves on muffler inventory costs\u003c\/li\u003e\n\u003cli\u003eOutlet adapter sold separately\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* Get your outlet adapter:\u003c\/p\u003e\n\u003cp\u003e** Custom piece can\"™t be returned\u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846971720002,"sku":"455470","price":353.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/arg_muffler_1_4.jpg?v=1768671091"},{"product_id":"10-x-36-3-1-2od-aluminized-muffler","title":"10\" x 36\", 3-1\/2\"OD Aluminized Muffler","description":"\u003cp\u003e10\" x 36\"L, 3-1\/2\"OD aluminized muffler with universal end-in, side-out muffler that also accomodates side-in, end-out option. Place the outlet anywhere you need.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e3-1\/2\" OD muffler good for motors up to 10 liters\u003c\/li\u003e\r\n\u003cli\u003eMuffler is 16 gauge aluminized construction\u003c\/li\u003e\r\n\u003cli\u003eSaves on muffler inventory costs\u003c\/li\u003e\r\n\u003cli\u003eOutlet adapter sold separately\u003c\/li\u003e\r\n\u003cli\u003eSold individually\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e* Get your outlet adapter:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e3-1\/2\" ID outlet adapter, \u003ca href=\"\/pd\/35-id-adapter-outlet\/465118\/\"\u003eitem 465118\u003c\/a\u003e\n\u003c\/li\u003e\r\n\u003cli\u003e3-1\/2\" OD outlet adapter, \u003ca href=\"\/pd\/35-od-adapter-outlet\/465119\/\"\u003eitem 465119\u003c\/a\u003e\n\u003c\/li\u003e\r\n\u003cli\u003e4\" ID outlet adapter, \u003ca href=\"\/pd\/4-id-adapter-outlet\/465120\/\"\u003eitem 465120\u003c\/a\u003e\n\u003c\/li\u003e\r\n\u003cli\u003e4\" OD outlet adapter, \u003ca href=\"\/pd\/4-od-adapter-outlet\/465121\/\"\u003eitem 465121\u003c\/a\u003e\n\u003c\/li\u003e\r\n\u003cli\u003e5\" ID outlet adapter, \u003ca href=\"\/pd\/5-id-adapter-outlet\/465122\/\"\u003eitem 465122\u003c\/a\u003e\n\u003c\/li\u003e\r\n\u003cli\u003e5\" OD outlet adapter, \u003ca href=\"\/pd\/5-od-adapter-outlet\/465123\/\"\u003eitem 465123\u003c\/a\u003e\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e** Custom piece can\"™t be returned\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846971883842,"sku":"455471","price":353.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/arg_muffler_1_5.jpg?v=1768671095"},{"product_id":"10-x-36-4-od-aluminized-muffler","title":"10\" x 36\", 4\" OD Aluminized Muffler","description":"\u003cp\u003e10\" x 36\"L, 4\"OD aluminized muffler with universal end-in, side-out muffler that also accomodates side-in, end-out option. Place the outlet anywhere you need.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli title='4\" Muffler good for motors up to 10 liters.'\u003e4\" OD muffler good for motors up to 10 liters\u003c\/li\u003e\n\u003cli title=\"Muffler is 16ga. Aluminized construction.\"\u003eMuffler is 16 gauge aluminized construction\u003c\/li\u003e\n\u003cli title=\"Saves on muffler inventory costs\"\u003eSaves on muffler inventory costs\u003c\/li\u003e\n\u003cli title=\"Outlet Adapter Sold Separately\"\u003eOutlet Adapter Sold Separately\u003c\/li\u003e\n\u003cli title=\"Outlet Adapter Sold Separately\"\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* Get your outlet adapter:\u003c\/p\u003e\n\n\u003cp\u003e** Custom piece can\"™t be returned\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846972047682,"sku":"455472","price":318.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/arg_muffler_1.jpg?v=1768671100"},{"product_id":"8d-quiet-performance-internal-muffler","title":"8\"D Quiet Performance Internal Muffler","description":"\u003cp\u003eInternal mufflers are designed for straight stacks. Muffler slips into the bottom of the stack and bolts into place. Template and stainless steel hardware are included.   Not designed to work with emission equipped engines, or for stacks with a built-in reducer. Body length is 45\". Fits 8\" diameter dual stacks. Works on dual exhaust only. Aluminized steel. Sold individually.\u003c\/p\u003e\r\n\u003cp\u003e* 2 holes must be drilled into the stack to secure the insert.  \u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51846973096258,"sku":"455498","price":777.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/455498a.jpg?v=1768671125"},{"product_id":"5-inlet-outlet-10l-straight-through-resonator-with-baffles","title":"5\" Inlet\/Outlet, 10\"L Straight Through Resonator with Baffles","description":"\u003cp\u003eGrand Rock 9\" aluminized muffler with 5\" inlet and 5\" outlet.   This resonator is a straight-through design, it contains baffles inside which are not visible. \u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e10\" long body, 16-1\/2\" long overall\u003c\/li\u003e\r\n\u003cli\u003e9\" diameter\u003c\/li\u003e\r\n\u003cli\u003e5\" inlet and 5\" outlet\u003c\/li\u003e\r\n\u003cli\u003eInlet and outlet are centered and round\u003c\/li\u003e\r\n\u003cli\u003eContains baffles inside which are not visible\u003c\/li\u003e\r\n\u003cli\u003eMade in USA\u003c\/li\u003e\r\n\u003cli\u003eSold individually\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51847047414082,"sku":"457371","price":165.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/457371a.jpg?v=1768672222"},{"product_id":"6-inlet-6-outlet-chrome-muffler-51l","title":"6\" Inlet\/6\" Outlet Chrome Muffler 51\"L","description":"\u003cp\u003eGrand Rock chrome 6\" diameter muffler.  51\" long overall, 38.4\" long body, 6\" diameter muffler with 6\" inlet diameter, 6\" outlet diameter chrome muffler.  Internal louverd core, not very quiet.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e51\"L, 38.4\" body length\u003c\/li\u003e\n\u003cli\u003e6\" body diameter, 6\" inlet\/6\" outlet\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51847097123138,"sku":"461009","price":656.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/461009a.jpg?v=1768673756"},{"product_id":"5-inlet-outlet-x-51-aluminized-muffler","title":"5\" Inlet\/Outlet x 51\" Aluminized Muffler","description":"\u003cp\u003e5\" inlet\/outlet, 51\" overall length, 10\" body diameter exhaust muffler.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eOE style muffler for many commercial truck models\u003c\/li\u003e\r\n\u003cli\u003eHeavy gauge steel with aluminized plating\u003c\/li\u003e\r\n\u003cli\u003eRated flow: 2400 cfm\u003c\/li\u003e\r\n\u003cli\u003eInner diameter: 5\"\u003c\/li\u003e\r\n\u003cli\u003eOutlet diameter: 5\"\u003c\/li\u003e\r\n\u003cli\u003eMuffler body diameter: 10\"\u003c\/li\u003e\r\n\u003cli\u003eMuffler body length: 44-1\/2\"\u003c\/li\u003e\r\n\u003cli\u003eMuffler overall length including inlet and outlet: 51\"\u003c\/li\u003e\r\n\u003cli\u003eInterchange no: M100465 86682M 86130M\u003c\/li\u003e\r\n\u003cli\u003e6 month warranty\u003c\/li\u003e\r\n\u003cli\u003eSold individually\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"UNITED ACCESSORIES","offers":[{"title":"Default Title","offer_id":51847099416898,"sku":"461356","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/461356a.jpg?v=1768673936"},{"product_id":"3-1-2-id-aluminized-muffler-patch-adapter-outlet","title":"3-1\/2\" ID Aluminized Muffler Patch Adapter Outlet","description":"\u003cp\u003e3-1\/2\"ID muffler adapter outlet.  Place the outlet anywhere you need it.  Just cut a hole in the body and weld the adapter to the muffler.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3-1\/2\"ID\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003e1 year warranty\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51847132414274,"sku":"465118","price":93.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/465118a.jpg?v=1768675659"},{"product_id":"3-1-2od-muffler-adapter-outlet","title":"3-1\/2\"OD Muffler Adapter Outlet","description":"\u003cp\u003e3-1\/2\"OD muffler adapter outlet.  Place the outlet anywhere you need it.  Just cut a hole in the body and weld the adapter to the muffler.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3-1\/2\"OD\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003e1 year warranty\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51847132447042,"sku":"465119","price":93.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/465119a.jpg?v=1768675663"},{"product_id":"4-id-aluminized-muffler-patch-adapter-outlet","title":"4\" ID Aluminized Muffler Patch Adapter Outlet","description":"\u003cp\u003e4\" ID muffler adapter outlet.  Place the outlet anywhere you need it.  Just cut a hole in the body and weld the adapter to the muffler.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4\" ID\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003e1 year warranty\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51847132479810,"sku":"465120","price":95.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/465120a.jpg?v=1768675666"},{"product_id":"4od-muffler-adapter-outlet","title":"4\"OD Muffler Adapter Outlet","description":"\u003cp\u003e4\"OD muffler adapter outlet.  Place the outlet anywhere you need it.  Just cut a hole in the body and weld the adapter to the muffler.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4\"OD\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003e1 year warranty\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51847132512578,"sku":"465121","price":95.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/465121a.jpg?v=1768675669"},{"product_id":"5-id-aluminized-muffler-patch-adapter-outlet","title":"5\" ID Aluminized Muffler Patch Adapter Outlet","description":"\u003cp\u003e5\" ID muffler adapter outlet.  Place the outlet anywhere you need it.  Just cut a hole in the body and weld the adapter to the muffler.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5\" ID\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003e1 year warranty\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51847132905794,"sku":"465122","price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/465122a.jpg?v=1768675673"},{"product_id":"5-od-aluminized-muffler-patch-adapter-outlet","title":"5\" OD Aluminized Muffler Patch Adapter Outlet","description":"\u003cp\u003e5\" OD muffler adapter outlet.  Place the outlet anywhere you need it.  Just cut a hole in the body and weld the adapter to the muffler.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5\" OD\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003e1 year warranty\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51847132938562,"sku":"465123","price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/465123a.jpg?v=1768675676"},{"product_id":"5-inlet-outlet-steel-muffler-34l","title":"5\" Inlet\/Outlet Steel Muffler 34\"L","description":"\u003cp\u003eQuality performance muffler! This muffler is engineered for minimal back pressure drop and optimum noise reduction. Fits most engine exhaust systems including  Peterbilt 379 extended hood and various other makes\/models. This muffler is NOT a straight-through design, it contains baffles inside. Steel body.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e5\"O.D. inlet, 5\"I.D. outlet\u003c\/li\u003e\r\n\u003cli\u003eBody is 9\"D x 34\"L, 40.5\" total length\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eNOTE: Do not use in a horizontal position. \u003cbr\u003e\u003cbr\u003eClamps required for installation, sold separately.\u003c\/p\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":51847334854978,"sku":"62580","price":324.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/l62580.jpg?v=1768683424"},{"product_id":"5-inlet-outlet-steel-muffler-44l","title":"5\" Inlet\/Outlet Steel Muffler 44\"L","description":"This quality performance muffler is engineered for minimal back pressure drop and optimum noise reduction. Fits most engine exhaust systems. 1 year manufactuer warranty against product defects in workmanship and materials. Heavy-gauge, T140 military grade, unpolished, aluminized steel body with 5\" diameter slotted inlet and outlet. Free flow muffler with interior baffle break allows even more air circulation. 10-1\/8\"D x 44-3\/8\"L, 51\"OAL. \u003cbr\u003eSold individually.","brand":"DYNAFLEX PRODUCTS","offers":[{"title":"Default Title","offer_id":51847334920514,"sku":"62582","price":200.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/l62582_2.jpg?v=1768683428"},{"product_id":"w900-catalytic-converter","title":"5\"Inlet\/Outlet x 35\" Kenworth Muffler","description":"\u003cp style='box-sizing: border-box; margin: 0px 0px 1em; color: rgb(51, 51, 51); font-family: \"DM Sans\", sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);'\u003e35\" aluminized muffler with 5\" inlet and 5\" outlet.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e35\" long body, 39\" long overall\u003c\/li\u003e\n\u003cli\u003e12\" diameter\u003c\/li\u003e\n\u003cli\u003e5\" inlet and 5\" outlet\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRAND ROCK","offers":[{"title":"Default Title","offer_id":53008443310402,"sku":"484151","price":880.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/files\/484151a.jpg?v=1777929519"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/2826\/4002\/collections\/Mufflers.jpg?v=1771352295","url":"https:\/\/www.iowa80.com\/collections\/mufflers.oembed?page=3","provider":"Iowa 80","version":"1.0","type":"link"}