
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 in. Heavy Duty Laser Cut Port Flanges- No Warping or Leaking. Premium Gaskets and Hardware included. Backed by a Lifetime Limited Warranty.
This Part Fits:
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 |
- CARB-EO:D-411-13
- ClearanceItem:N
- EPA:Compliant
- Exhaust- Mufflers & Tips>Headers & Manifolds
- fits_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
- fits_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
- fits_2004-2005`GMC`Yukon XL 2500`SLT
- fits_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
- LTL:N
- MPN:GP134S-C
- Non-CARB:N
- Prop65:Y
- SpecialOrder:Y