
GMCA427 Turbo Down Pipe 3 in. Fits Select GM 2500, 3500 Trucks and Vans
Color:
MBRP Exhaust Armor Lite Series, Turbo Diesel Down Pipe.
GMCA427 Turbo Down Pipe 3 in. Fits Select GM 2500, 3500 Trucks and Vans Features:
- Clamps Included: No
- Color: Black
- Flanged Inlet: Yes
- Fuel Type: Diesel
- Gasket Or Seal Included: No
- Inlet Inside Diameter (in.): 3
- Inlet Type: Single Inlet
- Material: Aluminized Steel
- Outlet Inside Diameter: 3
- Outlet Type: Single Outlet
- Pipe Bend Type: Mandrel
- Pipe Diameter: 3
- Quantity: 1
- Shape: Straight
- Tubing Diameter: 3 Inch
- Type: Downpipe
- Welded Bracket Quantity: 1
Emissions Note:
This part is legal for sale and use on Emissions Controlled Vehicles, in all 50 states, when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) #D-731
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
While the search to increase Duramax LLY/LBZ/LMM power usually leads to exhaust, intake, or tuner, one part that's often overlooked is the stock turbo downpipe. MBRP's downpipes replace this restrictive factory exhaust component with a direct-replacement that mounts between the factory turbo and the rest of the exhaust. These downpipes delivers more flow, fuel economy, and better performance output.
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Features:
- Mandrel-Bent 16-Gauge Tubing with High-Temp Black Ceramic Coating.
- 20% Greater Exhaust Flow Over Stock.
- Lower Exhaust Gas Temperature.
- Quicker Throttle Response.
- Greater Heat Retention.
- Richer Diesel Sound.








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