If your Kenworth T800âs exhaust system is starting to show its ageâor youâre just ready for an upgradeâyouâve come to the right place. Weâve got a full lineup of aftermarket exhaust parts and accessories made to fit your T800 like a glove.
From chrome stacks and flex pipes to mufflers, clamps, and elbows, these parts are built to handle the job and turn heads while doing it.
Why Upgrade Your Kenworth T800 Exhaust Components?
- Better airflow means a happier, more efficient engine.
- Custom stacks add serious style and a bold, clean look.
- Aftermarket parts are often tougher and longer-lasting than factory originals.
- Bolt-on installs make upgrades easyâeven if youâre wrenching at home.
- A fresh exhaust setup can give your truck that deep, rich sound youâve been missing.
Exceptional Style and Design
These exhaust parts are made with heavy-duty materials like chrome, stainless steel, and aluminized steelâso theyâre built for the long haul. Whether you're replacing worn parts or tricking out your rig, weâve got what you need:
- Flex pipes and elbows to keep your system sealed tight.
- Chrome stacks in straight, miter, and turnout styles.
- Mufflers and resonators to dial in your sound and backpressure.
- Brackets, clamps, and flanges for a secure, rattle-free fit.
Donât Just ReplaceâUpgrade the T800 Exhaust System
The right exhaust system can cut back pressure, boost potential horsepower, and even improve fuel economy. Get an even bigger upgrade by throwing in a stronger
T800 mounting frame and chassis for your exhaust system or adding more fuel capacity with a brand new
T800 diesel fuel tank and a pair of strong
fuel tank straps.
Ready to get started? Browse our full line of Kenworth T800 exhaust parts and find the setup that fits your rigâand your style.
Frequently Asked Questions About Kenworth T800 Exhaust Parts
Will these exhaust parts fit my specific year Kenworth T800?
Most of our Kenworth T800 exhaust parts are designed to fit models from 1987 to 2024. However, there are important variations between model years. Pre-2007 T800s typically use 5-inch diameter exhaust systems, while 2008 and newer models with EPA-compliant engines often require different configurations. Always check the product description for specific year ranges, or contact our support team with your VIN number for exact fitment verification.
What's the difference between aluminized and chrome exhaust stacks, and which should I choose?
Aluminized steel stacks offer good corrosion resistance at a lower price point and typically last 3-5 years depending on conditions. Chrome stacks provide superior shine and durability, lasting 7-10 years with proper maintenance, but cost approximately 40-60% more. If you're in harsh winter climates with heavy road salt exposure, chrome is worth the investment. For milder climates or budget-conscious buyers, aluminized steel provides solid performance.
Can I install these exhaust parts myself, or do I need professional installation?
Most straight pipes, stacks, and clamps can be installed with basic hand tools in 1-3 hours. You'll typically need a socket set, torque wrench, and exhaust hangers. However, complete exhaust system replacements involving the turbo downpipe or DPF/muffler assemblies often require cutting, welding, or specialized mounting brackets. If you're comfortable with basic mechanical work, stack and tip replacements are DIY-friendly. For full system overhauls, professional installation is recommended.
How do I know if I need a curved or straight exhaust stack?
This depends on your T800's configuration and local regulations. Straight stacks work well for day cabs and trucks without sleeper fairings. Curved stacks are necessary when you need to direct exhaust away from the sleeper cab or trailer. Most curved stacks offer 30-45 degree bends. Measure from your exhaust outlet to where you want the stack to terminate, accounting for any cab extensions or fairings that might interfere with exhaust flow.
What diameter exhaust parts do I need for my T800?
Standard T800 trucks typically use 5-inch diameter exhaust systems. However, some high-horsepower engines (like the CAT C15 or Cummins ISX) may have 6-inch systems. Check your existing exhaust pipe diameter at the turbo outlet or where it exits the muffler. When in doubt, 5-inch components fit approximately 85% of T800 applications. Remember that reducer adapters are available if you need to transition between different diameters.
Kenworth T800 Chrome Stacks & Tops
Kenworth T800 Clamps, Brackets & Mounting
Kenworth T800 DPF & Mufflers
Kenworth T800 Elbows, Piping & Comp.
Kenworth T800 Exhaust Kits
