MBRP GM8427 - Chev/GMC Duramax 6.6L,3" Turbo Down Pipe

MBRP GM8427 - Chev/GMC Duramax 6.6L,3" Turbo Down Pipe

Regular price $204.99 Sale

Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance.

- Greater Heat Retention
- 20% Greater Flow Over Stock
- Richer Diesel Sound
- Will not Affect Emissions (DPF system or the Urea injection system)
- Gains of +21 HP and +24 lb/ft Torque



Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California.