01-16 Duramax High Flow Exhaust Manifolds & Up Pipes 20 Inch Easily installs by plugging into

Easily installs by plugging into existing factory ports

HSP Diesel has worked with our customers

This does not include the turbocharger

Extended Length (IN): 23

01-16 Duramax High Flow Exhaust Manifolds & Up Pipes 20 Inch Easily installs by plugging intoFits: 2001 2004 Chevy GMC 6. 6l Duramax LB7 engines in 2500 & 3500 applications. May also fit non emissions Race 2004. 5 2016 LLY LBZ LMM LGH & LML engines. Note: 2015+ may require modification of the shock mount. Product Details This set of exhaust manifolds and up pipes makes a significant difference in the flow of your exhaust system pre turbo. This system will reduce EGT's and help your engine come alive! Includes: 2. High Flow Exhaust Up Pipes 2.