PPE High Flow Exhaust Manifolds With Up Pipes For 2004.5-2005 GM LLY Duramax 2001-2022 GMC Sierra 3500 In the LB7 transmission the

In the LB7 transmission the TransGo A1-LU-BST valve allows the amount of cut-back to be controlled so that main line stays at up to 190 PSI

• Premium black e-dipped coating provides superior durability and corrosion resistance on tube and forged rod end housing

1999-2008 GM Suburban 5

Reference build code DSK-P or check diff cover for cooling lines

PPE High Flow Exhaust Manifolds With Up Pipes For 2004.5-2005 GM LLY Duramax 2001-2022 GMC Sierra 3500 In the LB7 transmission thePPEs Manifolds and Up Pipes are designed to maximize power and flow characteristics. The Up Pipe bellows are internally sleeved, made from aircraft grade 304 stainless steel and designed with an increased inner diameter for higher flow. The entire Manifold and Up Pipe exhaust system is designed to lower exhaust gas temperatures (EGTs) and accelerate turbo spool up while increasing power, fuel economy and maintaining reliability. Kit comes complete