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Gibson Exhaust GP400S Performance Header - Stainless Steel

(1993-1999 Jeep Grand Cherokee; 1991-1995, 1997-1999 Jeep Wrangler; 1991-1999 Jeep Cherokee; 1997-1999 Jeep TJ)

Part of: Gibson Performance Headers - Direct-Fit OEM Replacement Exhaust Headers

Other options in this family: Gibson Exhaust GP126S Gibson Exhaust GP301S-C Gibson Exhaust GP301S Gibson Exhaust GP129S-C Gibson Exhaust GP500S

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

GP400S
10 reviews
Sale Price

$466.47

Estimated ship date Wednesday, November 25

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Gibson Exhaust GP400S Performance Header is a dyno-tuned stainless steel exhaust header engineered to deliver increased horsepower and torque at low and mid-range RPM highway speeds. This performance header improves your engine's breathing efficiency and reduces operating temperatures for better overall performance.

Key Features:

  • Dyno-tuned design for optimized power delivery at low and mid-range RPM
  • 3/8-inch heavy-duty laser cut port flanges prevent warping and leaking
  • Direct bolt-on replacement for factory manifolds using stock crossover pipe
  • No welding required - uses OEM style connections for easy installation
  • Premium gaskets and hardware included
  • Durable stainless steel construction
  • Suitable for lowered, raised, street, and off-road vehicles
  • 50 State street legal - meets EPA and CARB requirements
  • Will not affect factory warranty

This Gibson Performance Header enhances exhaust flow while maintaining emissions compliance, making it an ideal upgrade for drivers seeking improved performance without compromising legality or warranty coverage. Backed by Gibson's Lifetime Limited Warranty.

Products specifications

Fits

1993-1999 Jeep Grand Cherokee; 1991-1995, 1997-1999 Jeep Wrangler; 1991-1999 Jeep Cherokee; 1997-1999 Jeep TJ

Tubing Diameter

1.50-in. Stainless 16-gauge mandrel bent tubing.

Material

Stainless

Prop 65

Yes

Category

Truck and SUV

Easy ordering

fast and easy

found what i was looking for in 5 minutes

Parts as described. Arrived timely! My only comment is I didn't receive an email informing me my order had shipped until after my package was already en route. No worries...shipping info was available after that.

Exactly what I wanted at a Great price.

Order 12486. Item was simple to find and the website made it very easy to navigate. I appreciated the ability to pay with paypal and email notifications gave me confidence that everything was taken care of properly.

Great so far

shipment came on time, and was nicely wrapped.

Very nice people very considerate and helpful plus the price was nice

Return customer with a few more future purchases in mind...best price plus quick shipping means these guys are just that good!

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