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Gibson 91-99 Jeep Cherokee Base 4.0L 1-1/2in 16 Gauge Performance Header - Stainless Gibson GIBGP400S
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Gibson 91-99 Jeep Cherokee Base 4.0L 1-1/2in 16 Gauge Performance Header - Stainless

Gibson
GIBGP400S
677418006100
Headers & Manifolds
Out of stock
$ 1,154.94

SKU: GP400S | UPC: 677418006100

Gibson 91-99 Jeep Cherokee Base 4.0L 1-1/2in 16 Gauge Performance Header - Stainless

Gibson GP400S stainless performance headers replace factory manifolds on 1991-1999 Jeep Cherokee, Grand Cherokee and Wrangler models with 4.0L engines. Dyno-tuned design delivers more horsepower and torque at low and mid-range RPM for better highway performance. Mandrel-bent 1-1/2 inch tubing improves exhaust flow, engine breathing and reduces operating temperatures while retaining the stock crossover pipe.

Key Features

  • Dyno-Tuned Performance: Engineered for maximum usable power and torque gains at everyday driving RPMs with improved throttle response
  • Stainless Steel Construction: 16-gauge 1-1/2 inch primaries with 3/8-inch heavy-duty laser-cut port flanges prevent warping and leaks
  • Direct Bolt-On Fit: Replaces stock manifolds using OEM connections and stock crossover, no welding or cutting required
  • Street Legal Design: 50-state compliant, meets EPA and CARB standards, preserves factory warranty
  • Complete Kit: Includes premium gaskets, hardware and backed by Gibson Lifetime Limited Warranty

Product Notes

  • Suits lowered or lifted vehicles for street rods, daily drivers and off-road use
  • Stainless steel resists corrosion for long-term durability in harsh conditions
  • Ships in protective packaging to prevent shipping damage

Installation Notes

  • Professional installation recommended.
  • Bolt-on design fits directly with provided hardware and gaskets
  • Compatible with factory exhaust components including crossover pipe

This Part Fits

Year Make Model Submodel
1991-1993 Jeep Cherokee Base
1991-1992 Jeep Cherokee Briarwood
1996,1998-1999 Jeep Cherokee Classic
1993-1997 Jeep Cherokee Country
1991-1992 Jeep Cherokee Laredo
1991-1992,1998-1999 Jeep Cherokee Limited
1994-1999 Jeep Cherokee SE
1991-1999 Jeep Cherokee Sport
1993 Jeep Grand Cherokee Base
1993-1999 Jeep Grand Cherokee Laredo
1993-1999 Jeep Grand Cherokee Limited
1995,1997 Jeep Grand Cherokee Orvis
1994-1995 Jeep Grand Cherokee SE
1997-1998 Jeep Grand Cherokee TSi
1991-1993 Jeep Wrangler Base
1991-1992 Jeep Wrangler Islander
1991-1994 Jeep Wrangler Renegade
1991-1995,1997-1999 Jeep Wrangler Sahara
1994-1995 Jeep Wrangler SE
1997-1999 Jeep Wrangler Sport

Why Choose Gibson?

  • Proven dyno-tested exhaust systems deliver real-world power increases
  • Premium 16-gauge stainless steel built for lasting performance
  • Precision mandrel-bent tubing and laser-cut flanges ensure leak-free fit

Frequently Asked Questions

  • Q: Will GP400S fit my 1995 Jeep Wrangler Sahara 4.0L?
    A: Yes, confirmed fit for 1991-1995 and 1997-1999 Jeep Wrangler Sahara with 4.0L inline-6 engine
  • Q: What tubing size and material is used?
    A: 1-1/2 inch diameter 16-gauge T-304 stainless steel tubing for corrosion resistance and optimal flow
  • Q: What warranty coverage applies?
    A: Lifetime Limited Warranty against manufacturing defects when installed per instructions

Shipping & Handling

  • Method: Ground shipping via UPS or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Oversized box dimensions 49 x 15 x 15 inches
  • Weight: 29 lbs

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