4" DOWNPIPE BACK SINGLE | 2020-2022 GM 2500/3500 6.6L DURAMAX L5P

Our exhaust systems are offered in 16 gauge aluminized steel or T409 Stainless for easy installation and utmost durability. Expected benefits include enhanced performance, decreased EGTs, heightened flow, and improved breathing for your truck. With our FLO~PRO exhaust system, gain horsepower you can hear!

* IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 4-bolt flange off the turbo direct pipe! 

 These parts are for use on non-registered race vehicles on closed-course competition events *Installing or using this part on any emission-controlled vehicle ("street" or "off-road") may violate federal and/or state emissions laws and regulations. *Not available to ship to the United States