01-04 Duramax PPE High Flow 2" Up-pipe Set 4 Inch Inlet bolt-in replacement for the factory

bolt-in replacement for the factory manifold and is even drilled and tapped to accept the most popular EGT probes

The PPE Internal Oil Cooler Delete Kit is excellent for marine or high performance hot rod installations where space is limited

Straight bows roll up with the cover and provide a smooth

This 70" traction bar kit is intended for Crew Cab trucks with 6' or 8' beds

evenly spaced pleat design which produces more usable filter surface area for increased flow and greater dust holding capacity

01-04 Duramax PPE High Flow 2" Up-pipe Set 4 Inch Inlet bolt-in replacement for the factoryDiesel engines (even stock) produce high temperatures and pressures. OEM up pipes eventually fail from constant temperature and pressure fluctuation. PPE has taken OEM replacement to a new level. PPE OEM Up Pipes allow 53% greater flow than stock. PPE OEM Up Pipes are a direct bolt on to your factory manifolds. But unlike factory parts, PPE OEM Up Pipes are manufactured from 11 gauge 304 stainless steel and include our superior PPE 304 stainless