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 engine's 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.

Tubing Diameter: 1-3/4-in. Stainless 16-gauge mandrel bent tubing.
Header Features: Short Tube Style Header; Direct Fit, Bolt-On; Heavy duty laser cut flanges; Premium gaskets and all hardware included; No Welding; Attaches to the OEM crossover pipe
Footnote: Emission Compliant Carb EO# D-411-13
Warranty: Lifetime Limited Warranty
Item #: GP131S-C

Gibson 2001 - 2003 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Ceramic Coated

Part #: gibGP131S-C

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