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While it’s hard to miss a semi blazing down the road, it is often the shiny stacks that draw the attention of onlookers. They add a sleek uniqueness that can make even an older rig look modern and trendy. Although they add an aesthetic appeal, they are a vital component to ensuring your vehicle has the power it needs. An upgrade provides a way to get the best of both worlds in one swoop. Whether you are ready for something new to complement other enhanced components or simply can’t put off replacing your stacks any longer, Iowa 80 carries an array of dynaflex products to fit your needs and style.

Quality Parts

Anytime you make a change to your truck, you want the confidence that you are outfitting it with a quality part that is made to last. As a leader in the industry since 1972, Dynaflex prides itself on designing and crafting high-quality parts, which are made in the USA, with truck drivers in mind. All their parts are made with durable, high-grade metals that resist corrosion and scratches and engineered to boost performance and maximize power.

An Array of Options

No matter what make, model or year of your rig, Iowa 80 makes it easy to find the parts you need. Since every driver has their own sense of style and power preference, we strive to make sure you aren’t limited on your options. Our line of semi truck dynaflex products includes exhaust kits and stacks in various styles and sizes. For people who want something simple and sleek for their Freightliner have the choice of a classic taper-loc design that comes with two top stacks, two center spools, two elbows and four clamps. Need to overhaul an older Kenworth? A full diameter exhaust kit comes with everything you need, including a Y-pipe, support clamps and cab and frame brackets. If you are just in the market for a shiny new top, we also got you covered. From a full-on chrome bull hauler to mitered stacks with a more subtle finish to stacks with decorative cutouts, it is easy to personalize your ride. Whether you prefer a classy curve, bold angle or a simple straight edge, you don't have to compromise your style.

Competitive Prices

As you are narrowing down your search for dynaflex exhaust parts, you also want peace of mind that you don’t have to break the bank. With a pulse on the industry and strong relationships with top manufacturers, Iowa 80 is able to provide parts at competitive prices.

Semi Truck Exhaust Equipment and Accessories

Shop Semi Exhaust Pipes, Clamps, Stacks and More

Make sure your truck doesn’t get exhausted by keeping your rig’s exhaust system in top-notch condition with’s wide selection of replacement parts. When it’s time for a replacement or simply want a stylish upgrade, count on our extensive inventory of semi truck exhaust parts to fit each driver’s specific needs.

Exhaust Pipe

While semi exhaust stacks are often one of the first things passersby check out, your exhaust pipes are an important and unique part of your truck. They divert harmful gases from the engine out of the cab. Luckily, you can rev up your rig with some sweet style while maintaining a safe environment. When it comes to exhaust stacks, we have what you need. Whether you need one part or a whole kit, we have different styles of top ends, including bull hauler, curved and mitered, and spools and elbows. Regardless of which is the perfect one for you, they are available in durable, high-quality materials including aluminum, chrome and chrome-plated steel or stainless steel. Want some added heat protection? Consider adding a stack guard and grab handle. Most have a chrome finish that adds a sleek aesthetic. Even if you just want to modify the position of your stacks, check out our long-lasting, steel-reinforced, polyurethane cab bracket bushing for use with either a straight or angled cab bracket.


The muffler is another component of the semi exhaust system that is critical to the proper functioning of your vehicle and can be customized based on your liking. A muffler’s job is to cool engine gases and lower the noise of the gases leaving your vehicle. They also help decrease fuel consumption, which is essential for short and long hauls. Since every driver prefers different levels of noise from their muffler, you can easily adjust the muffler noise with exhaust tips. If you want to minimize sound or prefer to amp it up, we carry resonators to get the optimal sound. Available in chrome, chrome-plated steel, steel and stainless steel, they are also a great way to add some added style to your rig while still getting the heavy-duty protection needed. We also carry all the maintenance parts you may need, such as brackets, clamps, elbows, expanders, guards, hoses and much more.

Click here to learn how to measure your exhaust and choose the best stacks for your semi truck.

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