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Go Back JeepForum.com > Reviews > Engine > Headers > JBA 1527S JBA Cat4ward 4.0L Header

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JBA 1527S JBA Cat4ward 4.0L Header Reviews, Ratings, Specs & Prices
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JBA 1527S JBA Cat4ward 4.0L Header

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Rating:

Product Information

MSRP: $364.99
Average Price: $367.50
Manufacturer: JBA
Recommended?
Yes: 1 / No: 1

If you own a Jeep powered by the 4.0L I-6, you know that it is a solid dependable powerplant. Depending on what year vehicle you have, you may also know that it is short on power and torque and has a tendancy to crack exhaust manifolds. JBA has spent countless hours developing and testing the ultimate solution for these power and durability challenges. JBA's unique headers designes are crafted from the highest grade materials to ensure lasting performance for your Jeep. The head flange is a one-piece design that is CNC laser cut from 1/2" steel plate to guarantee a tight seal with the head. JBA's collector features a 3/8" flange secured with a 360 degree weld for maximum strength. Each kit includes high quality hardware and gaskets for a professional no-leak installation. Don't settle for low grade materials and inferior designs.

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Newtons3

Registered User
Newtons3's Reviews
07-25-2013, 10:02 PM
Price: $370.00
Pros: Heavy. Great fit. Excellent performance.
Cons: None
Recommended? Yes

Comments: Heavy flange. Heavy tubing. Awesome fit. Easy install. Fantastic performance.


Libtekguy

Registered User
Libtekguy's Reviews

03-21-2009, 05:45 PM
JBA 1527S JBA Cat4ward 4.0L Header
Price: $364.99
Recommended? No

Comments: Install was a complete ***** to do on my '03 wrangler. Took me and my brother about 7 hours to do. The bolts that hold are the intake and exhaust manifolds weren't to difficult to get off. But putting them back on after putting the new header on were nearly impossible. Someone with long skinny arms is the only way to get two of the lower bolts. I would not do this install again because the benefits aren't worth it. I will say there is a (slight) noticeable increase in 5th gear power on the freeway.



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