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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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