2007-2019 6.6L Duramax 304 Stainless Steel Four Inch Performance Exhaust Upgrade Polished (117020100)Description Keep your trucks good looks going with this stylish upgrade. This kit contains an elbow turn out pipe and a 5 inch exhaust tip, both of which are made out of premium 304 stainless steel. The no weld, clamp on install can be done in minutes to give you an instantaneous boost in both performance and appearance. This turn out kit maintains the OEM high flow 4 Inch over the axle tube and only removes the 3 Inch reducer tail section, which