jason.cook.52206 Posted July 23, 2018 Share Posted July 23, 2018 I have an 89 comanche 5 speed short bed 4.0 and my exhaust manifold is leaking. I can hear it as well as see where it has been welded to attempt fixes at the collector. I would like to replace it with a new stronger tube wall header but everything I am looking at is for xj's from 1991 and up. They say they will not work for my commanche. What options do I have? What have you guys used? Sent from my SM-G935V using Tapatalk Link to comment Share on other sites More sharing options...
GrizzzzBear Posted July 24, 2018 Share Posted July 24, 2018 Summit Racing has a "Performance Header" listed at about $250. Something I have been thinking about. Link to comment Share on other sites More sharing options...
DirtyComanche Posted July 24, 2018 Share Posted July 24, 2018 I'd probably weld it again. I have a cheap stainless one meant for a 91+ on my XJ. Wasn't worth the hassle to make it fit. Link to comment Share on other sites More sharing options...
ComancheKid45 Posted July 24, 2018 Share Posted July 24, 2018 You can still find new Renix manifolds on ebay for $100-$150 https://www.ebay.com/sch/i.html?_from=R40&_nkw=87-90+Jeep+4.0+exhaust+manifold&_sacat=0&LH_TitleDesc=0&_sop=15 Link to comment Share on other sites More sharing options...
jason.cook.52206 Posted July 29, 2018 Author Share Posted July 29, 2018 Thank you for your help guys. After looking into it more I decided to give the pacesetter performance header a try. I will keep you updated on how it turns out. Sent from my SM-G935V using Tapatalk Link to comment Share on other sites More sharing options...
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