The OEM components between the turbo and engine? Check out the WCFab Stage 1 High Flow Intake Bundle Kit for the 2001-2004 6.6L Duramax. This kit replaces the restrictive OEM LB7 Y-bridge, passenger side intercooler pipe, and driver side intercooler pipe with a high flow, 3" mandrel bent aluminum piping kit feeding WCFab's signature TIG welded, CNC machined billet y-bridge base to help increase throttle response, turbo spool up, and reduce EGTs by creating a full 3" intake tract between your turbo and engine.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2001-2004 |
Chevrolet |
Silverado 2500 HD |
Base |
| 2001-2004 |
Chevrolet |
Silverado 2500 HD |
LS |
| 2001-2004 |
Chevrolet |
Silverado 2500 HD |
LT |
| 2004 |
Chevrolet |
Silverado 2500 HD |
WT |
| 2001-2004 |
Chevrolet |
Silverado 3500 |
Base |
| 2001-2004 |
Chevrolet |
Silverado 3500 |
LS |
| 2001-2004 |
Chevrolet |
Silverado 3500 |
LT |
| 2004 |
Chevrolet |
Silverado 3500 |
WT |
| 2002-2004 |
GMC |
Sierra 2500 HD |
Base |
| 2001-2002 |
GMC |
Sierra 2500 HD |
SL |
| 2001-2004 |
GMC |
Sierra 2500 HD |
SLE |
| 2001-2004 |
GMC |
Sierra 2500 HD |
SLT |
| 2003-2004 |
GMC |
Sierra 2500 HD |
WT |
| 2002-2004 |
GMC |
Sierra 3500 |
Base |
| 2001-2002 |
GMC |
Sierra 3500 |
SL |
| 2001-2004 |
GMC |
Sierra 3500 |
SLE |
| 2001-2004 |
GMC |
Sierra 3500 |
SLT |
| 2004 |
GMC |
Sierra 3500 |
WT |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Fitment guides and tools are helpful, but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double check for you. We take the guesswork out of your purchase by standing behind our expertise.
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