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Hooker BlackHeart

Hooker BlackHeart Shorty Header

1991-1999 Jeep Wrangler YJ/TJ L6, 4.0L 1-1/2 Stainless Steel Shorty Header - Natural Finish

Part # 70305403-RHKR Be the first to write a review
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$516.95
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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

About Hooker BlackHeart

The BlackHeart team utilizes the latest technology and materials to design exhaust systems, engine swap kits, and mufflers for both import and domestic cars and trucks. Hooker Blackheart is platform-engineered to provide superb performance, aesthetics, and fitment.

Application1991-1999 Jeep Wrangler YJ/TJ 4.0L
Bolt SizeNA
Brand Hooker BlackHeart
CARB (California) CompliantNo
Emission Code7
EngineAMC inline six 4.0L
Exhaust SeriesHooker BlackHeart
Header FinishNatural
Header StyleShorty
Material304SS
Primary Tube Dia.1-1/2 inch
Product TypeHeaders
Tube Material304 Stainless Steel
UPC090127039595
Part Number70305403-RHKR
7

This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020. The company has reasonable basis (test results) to verify that this product allows the vehicle to operate within legal emissions standards and is therefore legal to be sold for on-street use in all states that accept the legal provisions of the Clean Air Act and the EPA Tampering Policy. This product is NOT LEGAL FOR SALE OR USE IN THE STATE OF CALIFORNIA. Testing with the California Air Resources Board, in order to achieve 50-state compliance, is pending with CARB. Once testing is complete with California, and an E.O. number is issued, this product will be updated to 50-state legal status.

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