Gibson 07-11 Jeep Wrangler JK Rubicon 3.8L 1-1/2in 16 Gauge Performance Header - Stainless Gibson GIBGP403S
Gibson 07-11 Jeep Wrangler JK Rubicon 3.8L 1-1/2in 16 Gauge Performance Header - Stainless Gibson GIBGP403S
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Gibson 07-11 Jeep Wrangler JK Rubicon 3.8L 1-1/2in 16 Gauge Performance Header - Stainless

Gibson
GIBGP403S
677418017663
Headers & Manifolds
1 Units In Stock - Ships Next Business Day
$ 1,732.61
$ 1,732.61

SKU: GP403S | UPC: 677418017663

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

Gibson Performance Headers deliver dyno-tuned power gains for 2007-2011 Jeep Wrangler JK models with 3.8L engines including Rubicon Sahara Sport and Unlimited variants. These stainless headers replace factory manifolds using the stock crossover pipe for unrestricted exhaust flow more horsepower and torque at low to mid-range RPMs and lower engine temperatures. Engineered for street off-road lowered or lifted JK Wranglers with direct bolt-on installation.

Key Features

  • Dyno-Tuned Design: Tested to increase usable horsepower and torque at highway speeds improving throttle response and acceleration
  • 1-1/2in 16 Gauge Stainless Tubing: Mandrel-bent for smooth exhaust flow corrosion resistance and long-lasting durability
  • Direct Factory Replacement: Bolts up using OEM connections and stock crossover pipe no modifications needed for seamless fit
  • 50-State Legal: Meets EPA and CARB standards preserves vehicle warranty and legal for all emissions testing
  • Heavy-Duty Construction: 3/8in laser-cut port flanges prevent warping or leaks includes premium gaskets and hardware backed by lifetime limited warranty

Product Notes

  • Ideal for both daily driving and off-road use fits lowered or raised suspensions without clearance issues
  • Reduces engine operating temperatures for consistent performance during extended drives
  • Ships in protective packaging to prevent damage during transit

Installation Notes

  • Professional installation recommended.
  • No welding required uses factory hardware locations and stock exhaust crossover
  • Bolts directly to OEM catalytic converters and mid-pipes with included gaskets and bolts

This Part Fits

Year Make Model Submodel
2011 Jeep Wrangler 70th Anniversary
2007-2011 Jeep Wrangler Rubicon
2007-2011 Jeep Wrangler Sahara
2010-2011 Jeep Wrangler Sport
2011 Jeep Wrangler Unlimited 70th Anniversary
2007-2011 Jeep Wrangler Unlimited Rubicon
2007-2011 Jeep Wrangler Unlimited Sahara
2010-2011 Jeep Wrangler Unlimited Sport
2007-2010 Jeep Wrangler Unlimited X
2007-2010 Jeep Wrangler X

Why Choose Gibson?

  • Proven leader in performance exhaust systems with decades of dyno testing expertise
  • American-engineered for real-world power gains on street and trail
  • Lifetime limited warranty ensures reliability and customer support

Frequently Asked Questions

  • Q: Will this header fit my 2008 Jeep Wrangler JK Rubicon 3.8L with a 2in lift?
    A: Yes it provides full clearance for lifted lowered or stock suspensions and bolts directly to factory exhaust components
  • Q: What material is used in the GP403S headers?
    A: Premium 16 gauge T-304 stainless steel tubing with 1-1/2in primaries and 2-1/2in collector for maximum corrosion resistance and flow
  • Q: Does installation void my factory warranty and what is covered?
    A: No it maintains full vehicle warranty as a 50-state legal part Gibson offers a lifetime limited warranty on defects in materials and workmanship

Shipping & Handling

  • Method: Standard ground shipping
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed dimensions 48in x 12in x 12in
  • Weight: 29 lbs

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