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Ceramic-Coated Manifolds option available for the High-Flow Exhaust Manifolds and Up-Pipes Kits - GM 6
Up-Pipe configuration may vary depending on your model
The bypass valve features a stiffer spring and a rubber seal
stock or modified
2020 - 2022 6
GM 6.6L Duramax OEM Length Replacement High Flow Up-Pipes GM Fed 01-04 and Ca 2001 - 116120000 2004-gmc-sierra-3500-esi6553461 Ceramic-Coated Manifolds option available forDiesel 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 percent 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
