01-04 Duramax PPE Manifolds & Up Pipes Intercooler Pipes & Y-Bridges SW #7: +130 HP

SW #7: +130 HP

"Straight-Pipe" No Muffler

D TAIL LIGHTS Chrome

the 200 Micro Extruded passages in each cooler provide a large surface area to transfer heat for external air flow cooling while turbulent oil flow design promotes a more complete cooling

some Mpg gain

01-04 Duramax PPE Manifolds & Up Pipes Intercooler Pipes & Y-Bridges SW #7: +130 HPPPEs High Flow Exhaust Manifolds and Up Pipes have a 53% greater flow over stock, NO EGR PROVISION PPE Manifolds are made from high quality cast iron and the Up Pipes are made from 11 gauge 304 stainless steel. The aircraft grade 304 stainless steel Up Pipe bellows are high flow, internally sleeved, and have an increased inner diameter. Features: Cast Hi Sil Moly iron high flow manifold construction Significant reduction in exhaust back pressure Free