When you’re rebuilding your GMC Sierra’s exhaust system for a fast-flowing performance layout, you need a section to connect the headers to the cat-back exhaust itself, which is where 1999-2017 Sierra mid pipes come in. Mid pipes made by aftermarket manufacturers have the same high standards, rust-resistant materials such as stainless steel, and mandrel-bent layout as other parts of the system, ensuring they come up to the performance benchmark set by the rest of the system. The mid pipes also house the catalytic converter – giving you a choice between 1999-2017 catted mid pipes (for street legal use), 1999-2017 off-road mid pipes (which delete the catalytic converter to produce a deeper, fiercer exhaust note and even more power but can’t be used on the street), and 1999-2017 resonator deletes (again offering extra performance and a more ferocious growl). AmericanTrucks also carries extension pipes to help the system fit the wheelbase.

 

Shop All Truck Exhaust for Increased Performance

 

Fitment Includes

• Base, C3, Classic, HT, Hybrid, Nevada Edition, SL, Z71, Denali, SLE, 1500, SLT and WT Sierras
• Engines: 4.3L Vortec V6, 4.8L Vortec V8, 5.3L Vortec V8, 5.3L Flex-Fuel Vortec V8, 5.3L Vortec V8 Hybrid, 6.0L Vortec V8, 6.2L VVT Vortec V8, 4.3L EcoTec3 V6, 5.3L EcoTec3 V8, 6.2L EcoTec3 V8 Sierras

*Please see Sierra parts pages for any exceptions.