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XJ 4.0L Jeep Long System

  • The wait is finally over! XJ Jeep Systems from ARH have arrived! Featuring our 6 into 1 merge collector manufactured using USA made 304 S/S and designed with a rotational firing sequence for increased power and torque. Guaranteed to outperform and outlast anything currently on the market, these headers were designed to never crack while handling the toughest conditions you can throw at them!

    Attn. All ARH products are exclusively manufactured for racing purposes. Installing these products on any vehicle eliminates the legal use, in any capacity, on public roads/highways and may be subject to fines and/or criminal liability as per the Clean Air Act.

  • Product features on this system includes:

    1. .065 wall 1-5/8" tubing (1-3/4"Primaries Available for Supercharged and Performance Built Engines)
    2. Unique to ARH 6 into 1 merge collector with tig welded Scavenger Spike
    3. Tube Routing for Rotational Firing Sequence
    4. Gains of 20 RWHP (or more with Cold Air Intake pre-installed)
    5. Guaranteed to NEVER crack
    6. Works great from Bone Stock to Modified or Supercharged
    7. Direct Fit to Catback (most models)
    8. 100% Made in the USA - Never Outsourced
    9. Made entirely of 304 stainless steel
    10. 3/8" thick laser-cut flanges for a warp-free seal
    11. Optimized primary tube routing for superior fit and performance
    12. Catted systems feature 200 cell metallic substrate catalytic converters for extreme durability