01-04 Duramax PPE High Flow 2" Up-pipe Set 4 Inch Inlet This area is where the

This area is where the piece is at its thinnest resulting in bending due to stress

ONE-PIECE CONSTRUCTION

Built specifically for the 2004

• 50% cotton/50% polyester

01-04 Duramax PPE High Flow 2" Up-pipe Set 4 Inch Inlet This area is where theDiesel 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