Product Description
MBRP PERFORMANCE EXHAUST
3" TURBO DOWN PIPE
2011-2015 CHEVY GMC DURAMAX DIESEL 6.6L
Part # GMCA427
Features:
- 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
- Carb EO # D-763-2
