Kenworth T700 Exhaust Parts

Frequently Asked Questions About Kenworth T700 Exhaust Parts

What exhaust stack sizes and configurations fit the Kenworth T700?

The Kenworth T700 typically accommodates 5-inch and 6-inch diameter exhaust stacks. Most models from 2011-2019 use standard mounting brackets that fit both straight pipes and curved stacks. Chrome stacks generally range from 36 to 72 inches in length, while miter-cut and turn-out styles are available in various angles. Always verify your specific truck's configuration, as some T700s with aftermarket modifications may require different sizing.

Will aftermarket exhaust parts void my Kenworth warranty or affect emissions compliance?

Installing DOT-approved aftermarket exhaust components like chrome stacks, elbows, and heat shields typically won't void your warranty as long as they don't alter the emissions system. However, removing or modifying DPF filters, mufflers, or catalytic converters can void warranties and violate federal emissions laws. Stick to bolt-on accessories that work with your existing emissions equipment, and keep all original parts if you plan to return the truck to stock configuration.

How difficult is it to install exhaust stacks and accessories on a T700?

Basic exhaust stack installation usually takes 2-4 hours and requires common tools like wrenches, clamps, and possibly a drill for new mounting holes. The biggest challenges include aligning heavy chrome stacks properly and ensuring secure mounting to prevent vibration damage. Many drivers recommend having a second person help position the stacks. Professional installation typically costs $200-400 if you prefer to have a shop handle it.

What's the difference between 304 and 409 stainless steel exhaust parts?

304 stainless steel contains more chromium and nickel, making it highly resistant to corrosion and maintaining a bright finish longer - ideal for show trucks or drivers wanting maximum durability. 409 stainless is more affordable and still resists rust well, but may develop a slight patina over time. For most T700 applications, 409 stainless provides excellent value, while 304 is worth the extra cost if appearance is a top priority.

Which exhaust configurations work best for T700s with sleeper cabs versus day cabs?

Sleeper cab T700s typically use curved or west coast-style stacks that route exhaust away from the sleeper windows, reducing cab noise and preventing soot buildup. Heights between 60-72 inches work well for most sleeper applications. Day cab models offer more flexibility - straight stacks, miter cuts, and shorter 48-inch options all work well. Consider your typical routes too, as low-clearance areas may require shorter stacks regardless of cab style.