Hooker continues to push the boundaries of performance with the BlackHeart line of exhaust products. We are proud to offer this shorty header for 1991-99 Jeep Wrangler YJ/TJ vehicles. This header is engineered to offer both premium fitment and maximum performance from your 4.0L L6 engine.
Features:
- Max dyno gains of +4 HP & +7 LB.FT torque
- 1-1/2” diameter tuned length primary tubes feature smooth transition, 6-2-1 design for increased exhaust flow, improved throttle response and a broad torque curve
- Utilizes true mitered merge collectors designed to maximize exhaust velocity and scavenging for optimum performance
- Constructed from heavy duty 14-gauge, stainless steel for increased strength and durability
- Uses 1/2" thick head flange for durability and an optimum sealing surface
- Retains factory O2 sensors and catalytic converters
- 100% bolt-on with NO cutting necessary for a hassle-free installation
- Quality welds for strength, longevity and good looks
- Premium header gasket included
- Manufacturer's limited lifetime warranty
SPECS
| Application | 1991-1999 Jeep Wrangler YJ/TJ 4.0L |
|---|---|
| Bolt Size | NA |
| Brand | Hooker BlackHeart |
| CARB (California) Compliant | No |
| Emission Code | 7 |
| Engine | AMC inline six 4.0L |
| Exhaust Series | Hooker BlackHeart |
| Header Finish | Natural |
| Header Style | Shorty |
| Material | 304SS |
| Primary Tube Dia. | 1-1/2 inch |
| Product Type | Headers |
| Tube Material | 304 Stainless Steel |
| UPC | 090127039595 |
| Part Number | 70305403-RHKR |