Exhaust flex - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today



Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 10-12-2010, 08:06 AM
Thread Starter
  #1
Newb
 
Join Date: Oct 2010
Posts: 4
Gr8dane is on a distinguished road
Exhaust flex

I've burned through 3 sets of headers on my 99 tj 4.0, 2 were banks, I can't knock banks for there design because it sound awesome and adds some noticeable power so I'm assuming the failing keeps happening due to the lack of flex of the exhaust in retrospect to the engine, has anyone added a flex coupler to their exhaust i know I'm not alone on this one.
Gr8dane is offline   Quote
Old 10-12-2010, 08:13 AM   #2
Jeeper
 
EdJonesJeeper's Avatar
 
Join Date: Jan 2010
Location: Western NC
Posts: 1,008
EdJonesJeeper is on a distinguished road
Quote:
Originally Posted by Gr8dane
I've burned through 3 sets of headers on my 99 tj 4.0, 2 were banks, I can't knock banks for there design because it sound awesome and adds some noticeable power so I'm assuming the failing keeps happening due to the lack of flex of the exhaust in retrospect to the engine, has anyone added a flex coupler to their exhaust i know I'm not alone on this one.
The oem pipes have flex built in and are your best option in your tj. They are free flowing as well.

__________________
99' TJ locked and beat
EdJonesJeeper is offline   Quote
Old 10-12-2010, 11:56 PM   #3
Jeeper
 
Join Date: Sep 2010
Posts: 195
cpainter56 is on a distinguished road
Quote:
Originally Posted by EdJonesJeeper

The oem pipes have flex built in and are your best option in your tj. They are free flowing as well.
Thats not 100% true. I'd check my motor mounts if it were me. Any play in those can mess with the exhaust. Those banks headers have warranties against breaking and bending also.
cpainter56 is offline   Quote
 
Old 10-12-2010, 11:59 PM   #4
Jeeper
 
Walkingstick's Avatar
 
Join Date: Aug 2010
Location: USA
Posts: 1,736
Walkingstick is on a distinguished road
Quote:
Originally Posted by EdJonesJeeper

The oem pipes have flex built in and are your best option in your tj. They are free flowing as well.
My OEM doesn't have any flex points..
__________________
Make Sure Everyone is Dead within hearing and sight range. Only then, you can say any area is cleared.
Walkingstick is offline   Quote
Old 10-13-2010, 07:49 AM
Thread Starter
  #5
Newb
 
Join Date: Oct 2010
Posts: 4
Gr8dane is on a distinguished road
Quote:
Originally Posted by Walkingstick

My OEM doesn't have any flex points..
Nope, my oems had no flex points, welded up the headers last night good as new, going to install 4" section of flex pipe on the head pipe and problem should stop, and ports on oem set restrict airflow, hence aftermarket headers. I know the flex joint manifold you speak of jeep wants 500 bucks for, I'll just keep mine
Gr8dane is offline   Quote
Old 10-13-2010, 08:09 AM   #6
Jeeper
 
Join Date: Mar 2010
Location: Connecticut
Posts: 449
97'wrangler is on a distinguished road
Quote:
Originally Posted by Gr8dane

Nope, my oems had no flex points, welded up the headers last night good as new, going to install 4" section of flex pipe on the head pipe and problem should stop, and ports on oem set restrict airflow, hence aftermarket headers. I know the flex joint manifold you speak of jeep wants 500 bucks for, I'll just keep mine
Could you take a couple of pics of what u did? I am going to do a 4.0l engine swap in my 2.5l SE. And I here that a lot of people r breaking there headers, why is that? I haven't with my 2.5l...
97'wrangler is offline   Quote
Old 10-13-2010, 08:57 AM
Thread Starter
  #7
Newb
 
Join Date: Oct 2010
Posts: 4
Gr8dane is on a distinguished road
Quote:
Originally Posted by 97'wrangler

Could you take a couple of pics of what u did? I am going to do a 4.0l engine swap in my 2.5l SE. And I here that a lot of people r breaking there headers, why is that? I haven't with my 2.5l...
My experience and logic says the 4.0 creates more heat an 97-02 range years had really Rigid Exhaust pipe, for those street jeeps it was just bad design and material I believe, 4 the offroaders vibration is the killer. Once I get the flex pipe in that will allow the header to move with the engine and the rest of the exhaust will stay in place. Hold off on that 4.0 I got a buddy with the 2.5 running 40s with one ton axles he has no power issues.

Gr8dane is offline   Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
1991 - 1999 Jeep Wrangler Stainless Steel Exhaust Manifold & Gasket Kit for 4.0L 1ATony Vendor Spotlight! Great Deals for Members. 4 12-17-2012 03:00 PM
Front exhaust flex pipe rbjackson YJ Tech Forum 2 10-05-2010 01:32 PM
Front exhaust flex pipe rbjackson YJ Tech Forum 0 10-05-2010 12:39 AM
Leaky Exhaust manifold AKWrangler TJ Tech Forum 1 03-29-2010 10:20 AM
Exhaust Question my1stjeep YJ General Discussion Forum 12 07-02-2009 07:14 PM



Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 05:03 PM.


User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC
« Back

Enter your email address:

Delivered by FeedBurner