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6.6L Duramax 3" Turbo Down Pipe (11-15 Chev/GMC)
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.
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