
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 |
|---|---|---|---|
| 2011 | Chevrolet | Silverado 2500 HD | LT |
| 2011 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011 | Chevrolet | Silverado 2500 HD | WT |
- 2011-chevrolet-silverado-2500-hd-lt-esi9158911
- 2011-chevrolet-silverado-2500-hd-ltz-esi3521225
- 2011-chevrolet-silverado-2500-hd-wt-esi2728327
- CARB-EO:D-411-13
- ClearanceItem:N
- EPA:Compliant
- fits_2011`Chevrolet`Silverado 2500 HD`LT~2011`Chevrolet`Silverado 2500 HD`LTZ~2011`Chevrolet`Silverado 2500 HD`WT
- LTL:N
- MPN:GP136S
- Non-CARB:N
- Prop65:Y
- SpecialOrder:Y