Needin' a new exhaust system for my '89 yj -
LinkBack Thread Tools
post #1 of 3 Old 08-14-2011, 01:43 PM Thread Starter
Registered User
1989 YJ Wrangler 
Join Date: Aug 2011
Location: Laughlin
Posts: 16
Needin' a new exhaust system for my '89 yj

Just picked up a 1989 yj with a 4.2L and a 5-speed trans in it and it just don't have the power that it should.
After diagnostic ... the exhaust system is shot! specifically, the catalytic converter is clogged and the muffler is falling a part

I'm looking to replace everything. including installing a new header. and i'm looking for any tips and/or ideas as far as... what are the good header brands for a Jeep(at decent prices), and would it be better if i went with stainless steal (since i do like driving through water).

And as for the rest of the system, since i live in southern nv., i don't need to deal with smog tests, so the catalytic converter can go. is there a bolt-on kit that will fit my Jeep from the header to tail pipe? or do i have to take 'er to the local muffler shop?

any one??

tia, PR2112.

p.s. i had a "flow master" on my 4 runner that i really liked. it sounded great!

and also what about the different sizes, 1 1/2", 2", bigger?

PR2112 is offline  
Sponsored Links
post #2 of 3 Old 08-14-2011, 05:33 PM
Registered User
1995 YJ Wrangler 
Join Date: Jun 2011
Posts: 805
I would personally just go to a custom exhaust shop and have them do a performance kit. It will cost more but it for sure beats fighting all the rusted bolts on the exhaust that are a problem on any car but even a bigger problem on YJs. I have a punched out cat, it got me a few extra ponies and sounds good. I have an after market mufler as well and it sounds good but I can never remember the name. To pick an exhaust that sounds good, go to youtube and listen to jeeps that are posted with your engine and what muffler you want to use. I think morris 4x4 has a complete bolt on kit that will let you select what parts you want to use if you want to skip the cat and add your own muffler, ect, ect.

DD- 1995 YJ 2.5L, Cat delete, 19lb injectors, 30/9.5r15
Trail Rig- 1994 YJ 4.0L, Rubicon Express 4.5inch lift, 1inch body, D30 Aussie, 33/12.5/r15 Cooper Mud Terrains, front bumper, rocker guards
Spuznick242 is offline  
post #3 of 3 Old 08-14-2011, 07:17 PM Thread Starter
Registered User
1989 YJ Wrangler 
Join Date: Aug 2011
Location: Laughlin
Posts: 16
Yeah i did the u tube thing and still want to stick with the flowmaster exhaust. i've seen a guy on utube with a flowmaster on a '91 yj, but not an '89. i also went to flowmasters site and tried to find a system for my year, but as low as they go is 1991!

the one on utube was a model d-40 iirc, and i can't remember which header he had, maybe a borla. but it sounded pretty bad-a$$.

so maybe i'll just buy a borla stainless header and a flowmaster muffler and have the guys at the local shop fab up what goes in-between!!

what do ya think?

oh, and he ran 2.25" pipe.

Last edited by PR2112; 08-14-2011 at 07:22 PM. Reason: adding info.
PR2112 is offline  


Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
what could it be now? needin some ideas 288sunny TJ Wrangler Technical Forum 1 10-31-2009 03:22 PM
Upgraded head, but changed Exhaust Manifold so how do I get an exhaust system now? jeepdude1987 YJ Wrangler Technical Forum 2 02-19-2009 12:54 AM
Motor swap, needin info please Lost again YJ Wrangler Technical Forum 1 03-27-2008 02:42 PM
YJ guy needin some TJ help hmmhoyhoy TJ Wrangler Technical Forum 15 02-08-2006 09:54 AM
Needin' expert advice....... HELP!!!! 4x4girl TJ Wrangler Technical Forum 14 11-04-2004 06:56 PM

Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome