17-21 Duramax L5P PPE Stainless High Flow Down Pipe 4 Inch Inlet High strength Upper and Lower

High strength Upper and Lower silicone Boots

Kit includes pan gasket

causing cross leaks and poor shift performance

It is recommended that you purchases this kit with the ccv

17-21 Duramax L5P PPE Stainless High Flow Down Pipe 4 Inch Inlet High strength Upper and LowerThe stock L5P down pipe causes restriction and limits the movement of exhaust gasses. PPE solves this problem with the Three Inch 304 Stainless Steel Down Pipe that is engineered for superior flow. Upgrade your L5P and realize better performance. Kit includes a pre installed, woven titanium sleeve to reduce engine bay temperatures. The titanium wrap is secured with stainless steel clamps. GM Equivalent P N: 12671086 Made of 3 inch 304 stainless steel