Borla Borla Header for 00-04 Jeep Wrangler TJ with 4.0L Reviews, Ratings, Specs & Prices
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Borla Borla Header for 00-04 Jeep Wrangler TJ with 4.0L

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Product Information

MSRP: $625.00
Average Price: $330.86
Manufacturer: Borla
Yes: 9 / No: 1

Taken from website 08 Aug 2006:

Borla Headers are tuned to suit your vehicle. They increase power and maximize fuel efficiency. This new header uses a unique two part design to addapt to the stock pre cats and cross over pipe so little modification will be needed. When combined with a Cat Back system, vehicles experience 10-15 horsepower increases. Great sound with excellent flow. Borla systems are street legal in 50 states. With the Million Mile Warranty, Borla is the last exhaust system you'll ever need to buy. **GASKET NOT INCLUDED**


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Junior Member
bomoto's Reviews
12-20-2011, 06:26 PM
Price: $100.00
Pros: Was replacement of a defect orginal
Cons: none
Recommended? Yes

Comments: Its now louder, passing perfect


Registered User
valacech's Reviews

07-13-2010, 03:09 PM
Price: $360.00
Pros: Well made, strong/sturdy, includes all parts needed, no rust.
Cons: Leaks, leaks, leaks, very difficult to install/maintain.
Recommended? No

Comments: I have had this kit for over a year. It was a pain to install, but any header system would be. The parts are well made and very durable. The engine performed well with these headers and sounded great. Over time, the Y-pipe cat assembly became loose from the header pipes and began leaking. Constant buzzing sound as well as exhaust fumes entering the cab. Tightened the bolts, stopped leak, came back after about 3 weeks. Not sure why the hell this thing won't stop leaking.

Registered User
sp33dracerman's Reviews

06-24-2010, 04:57 PM
Price: $849.00
Pros: lifetime warranty
Cons: expensive
Recommended? Yes

Comments: this borla sounds amazing

Registered User
northernbound's Reviews
02-23-2010, 03:56 AM
Price: $1.00
Pros: unproven still..
Cons: unproven still
Recommended? Yes

Comments: unproven...I'll respond after I break them in

Registered User
Coops's Reviews

02-16-2009, 11:22 PM
Borla Borla Header for 00-04 Jeep Wrangler TJ with 4.0L
Pros: direct replacement
Cons: none really
Recommended? Yes

Comments: Had it installed with a magnaflow cat back system, I did notice a seat of the pants difference once the header was installed. It makes 33's and 3.73's more livable until I can re-gear.

Mine did come with a gasket which did blow out after maybe a year. So far the new one has held.


Registered User
edmond's Reviews

04-23-2008, 03:23 AM
Borla Borla Header for 00-04 Jeep Wrangler TJ with 4.0L
Pros: power increase
Cons: Not legal in Cali for 05-06
Recommended? Yes

Comments: I had this header on my old 98TJ and I noticed a power increase imediatey

Registered User
randonlee25's Reviews

03-04-2008, 11:44 PM
Borla Borla Header for 00-04 Jeep Wrangler TJ with 4.0L
Price: $625.00
Recommended? Yes

Comments: A lot more flow! A must!


Registered User
bdf1783's Reviews

02-27-2008, 10:05 PM
Borla Borla Header for 00-04 Jeep Wrangler TJ with 4.0L
Price: $1.00
Recommended? Yes

Comments: good product but not if u loking for sound


Registered User
KnightFire's Reviews

01-24-2007, 04:59 PM
Borla Borla Header for 00-04 Jeep Wrangler TJ with 4.0L
Recommended? Yes

Comments: Just wanted to update this article, I've yet to be contacted by Borla after SEVERAL email attempts. I've given up trying to contact thier 'customer support' division. I'll most likely find a reason to try the Banks header system as I know for a fact they are responsive to customer queries.


Registered User
KnightFire's Reviews

08-06-2006, 02:41 PM
Borla Borla Header for 00-04 Jeep Wrangler TJ with 4.0L
Price: $380.00
Pros: Gives a bit more power/Deeper throaty sound
Cons: Possible headerpipe/downpipe fitment issues
Recommended? Yes

Comments: I've had Borla's header/cat-back system for a few years now. Ever since the installation, I've had an exhaust leak at the flange where the header and pre-cat pipes meet. The kit did not come with any type of dough-nut gasket to aid in sealing this union area.

I've tried everything to repair it, ensured the bolts were tight, exhaust putty and exhaust wrap at the flange only, etc...nothing ever seems to work for more than a week. The problem is that the exhaust itself is prone to movement, I can actually grab the exhaust y-pipe, move it and the leak will stop, but it immediately returns when I hit a bump in the road.

I've contacted Borla about this issue recently as I'm to the point now, where it's madening. I hope to hear from them, if I do, I'll post it.

Overall, I think adding the Borla header/cat-back exhaust was a GREAT move for my Jeep. I consistantly walk away from other 4.0L owners on the highway, I've RARELY needed to grab 4th gear to pass someone after their installation (unless it was a going up a STEEP hill) and I did see an 1-2mpg increase.

I've had the system on the Jeep for 4 years now, and the only complaint I have is the annoying exhaust cracks, no breaks, and it really does sound good...when it's not leaking.

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