2001-2016 Chevy Bolt On Up Pipes Silverado Diesel Duramax GM Turbo 2500 3500

Circuit Werks replacement Up-Pipes for the 2001-2016 GM 6.6L V8 DIESEL OHV Turbocharged Fits 2001-2016 Silverado 2500HD 2001-2016 GMC Sierra 2500HD 2007-2016 3500HD Diesel A stock Duramax can produce high temperatures and pressures that cause OEM up pipes eventually fail from constant temperature and pressure fluctuation.  Circuit Werks Up-Pipes allow 53% greater flow over stock, and are a direct bolt-on to your factory manifolds.  Uses stock exhaust manifolds and hardware. FEATURES:  Bolt-On Replacement (Non-EGR)Faster Spool-Up & Increased Performance  Increase flow and reliability. Significant Reduction In Exhaust Back Pressure Free-Flowing Stainless Steel Inner Liner Bellows Stainless steel 11-gauge .120-inch wall, 2-inch OD Up-PipesOEM Style Metal Gaskets Included Note: These race up-pipes do not retain the use of the EGR. They are for off-road use only and will only work on non-EGR s.