149699
This item is either made to order or has limited inventory. Please reach out to confirm lead times if needed.
Every Gibson Performance Header is Dyno-tuned and engineered to deliver more usable horsepower and torque at low and mid-range RPM highway speeds. Improves engines ability to breathe and cooler operating engine temperature. Designed as a direct replacement for the factory manifolds, using the stock crossover pipe. They are well suited for lowered and raised vehicles, street and off-road. 50 State Street legal. Meets EPA and CARB requirements. Will not affect the factory warranty. No welding required. Uses OEM style connections. 3/8" Heavy Duty Laser Cut Port Flanges- No Warping or Leaking. Premium Gaskets and Hardware included. Backed by a Lifetime Limited Warranty.

This Part Fits:

Year Make Model Submodel
2004 Chevrolet Avalanche 2500 Base
2005-2006 Chevrolet Avalanche 2500 LS
2005-2006 Chevrolet Avalanche 2500 LT
2004-2005 Chevrolet Silverado 2500 HD Base
2004-2005 Chevrolet Silverado 2500 HD LS
2004-2005 Chevrolet Silverado 2500 HD LT
2004-2005 Chevrolet Silverado 2500 HD WT
2004-2005 Chevrolet Silverado 3500 Base
2004-2005 Chevrolet Silverado 3500 LS
2004-2005 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2004-2005 Chevrolet Suburban 2500 LS
2004-2005 Chevrolet Suburban 2500 LT
2004-2005 GMC Sierra 2500 HD Base
2004-2005 GMC Sierra 2500 HD SLE
2004-2005 GMC Sierra 2500 HD SLT
2004-2005 GMC Sierra 2500 HD WT
2004-2005 GMC Sierra 3500 Base
2004-2005 GMC Sierra 3500 SLE
2004-2005 GMC Sierra 3500 SLT
2004-2005 GMC Sierra 3500 WT
2004-2005 GMC Yukon XL 2500 SLE
2004-2005 GMC Yukon XL 2500 SLT
Gibson 05-06 Chevrolet Avalanche 2500 LS 8.1L 1-3/4in 16 Gauge Performance Header - Stainless
149699

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