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Exhaust› Headers, Manifolds and Components

Gibson

Gibson 07-11 Jeep Wrangler JK Rubicon 3.8L 1-1/2in 16 Gauge Performance Header - Ceramic Coated

$1,718.18 $748.36 Save $969.82

SKU: G003 GP403S-C

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Special Order
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: GP403S-C

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.

Features:

  • 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

Performance Header | Ceramic Coated

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The Gibson GP403S-C are ceramic-coated performance headers designed as a direct replacement for factory manifolds. They are engineered to increase horsepower and torque at low and mid-range RPMs, improve engine breathing, and achieve cooler operating temperatures. These headers feature heavy-duty 409L stainless steel 16-gauge tubing, high-temperature ceramic coating (up to 1300 degrees), mandrel-bent tubing, and heavy-duty 3/8-inch thick laser-cut port flanges to prevent warping or leaking. They use OEM-style connections, require no welding, and include premium gaskets and hardware for installation. The product is suitable for both lowered and raised vehicles, and for street and off-road use. It is 50-state street legal and meets EPA and CARB requirements. The product is proudly made in the USA and backed by a Lifetime Limited Warranty.

Fitment

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Specifications

BrandGibson
Part NumberG003 GP403S-C

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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