Gibson Performance GP400S-C Performance Header — Vicious Offroad Skip to content

Gibson Performance - Performance Header P/N GP400S-C

  • Heavy Duty 409L Stainless 16 Gauge Tubing
  • Hi-Temp Coating To 1300 Degrees
  • Mandrel Bent Tubing
  • Heavy Duty 3/8 in. Thick Laser Cut Port Flanges
  • Premium Gaskets and Hardware
  • No Welding Required
  • Product Documents:

    Short Tube Style - 1.5 in. 14 Gauge Tubing - Direct Fit - Ceramic Coated Stainless Steel 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.


    Year Make Model
    1999 Jeep Cherokee
    1999 Jeep Grand Cherokee
    1999 Jeep Wrangler
    1997 Jeep Cherokee
    1997 Jeep Grand Cherokee
    1997 Jeep Wrangler
    1998 Jeep Cherokee
    1998 Jeep Grand Cherokee
    1998 Jeep Wrangler