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  1. Engines & Drivetrain
    Hello Jeep Forum members. I'm new to this forum but already need help. I have a 93 YJs and lately the fuel pump hasn't always been working. First, within the past couple months, when it is really moist outside it doesn't want to start. I didn't however notice if the fuel pump would prime or not...
  2. XJ Cherokee Technical Forum
    I have a 97 XJ 4.0L that is at the moment fully stock. I have heard a lot of talk about the 4.0l engine loosing power with bigger high flowing pipes. I would still like to increase my HP and torque. with the mods listed below, does anyone have any info/experience with choosing the correct pipe...
  3. TJ Wrangler Technical Forum
    Installed banks cold air, took to shop and replaced cracked mani with banks header, then took to exhaust shop put on banks cat back. Got on freeway 50-55 mph max! Hits 4000rpm and boggs down. Always freaking something!!! Also had pre-existing jet chip and tb spacer. Pulled over removed jet chip...
  4. Jeep CJ Forum
    Guys, can someone help me with what type of headers I need to buy for my 304 with an automatic (3-speed) tranny. I want to go headers to one pipe out the drivers side back corner. Thanks everyone. Jeff
  5. WK Grand Cherokee & XK Commander Forum
    I just bought this Jeep and let me say this monster rocks!!! The sound of the HEMI doesn't purr it roars. All forest creatures within a 10 mile radius hear that roar they instantly crap themselves. I do have a few questions. I read about the service checklist forum when you buy a used jeep...
  6. Jeep CJ Forum
    Im sorry if this has been asked before, I couldnt really find it. Anyway are there any after market headers I can install with out having to cut my fenders in the back corner? Every time I see someone put a set on they seem to be cutting or bending the fender a little to make it fit. Motor is a...
  7. YJ Wrangler Technical Forum
    Hey Everyone ~ I finally got my '90 YJ back together (been down a month) after replacing '87 4.2L head with '98 4.0L head. Stayed with the stock intake (& Weber 32/36) but can't find headers that fit very well (gone through 3 sets). I modified the power steering bracket and cut a crapload out...
  8. YJ Wrangler Technical Forum
    Ive been lurking on the forum for a long while now and learned a whole lot but now i finally decided to post and ask for some opinions :) So i finally busted up my rusted manifold that was already cracked. the two piped separated at the collector and now its been sitting for a while till i...
  9. YJ Wrangler Technical Forum
    I've got a '90 YJ with the 4.2l and Mopar MPI Fuel Injection conversion kit. I want to get performance headers, but I'm not sure if I should order headers for the 4.2l or 4.0l. The Mopar Kit says that after installation, I all the new components are equivalent to the '94 YJ. Has anyone installed...
  10. Full Size Jeep Forum
    which one should i get: Edelbrock shorty headers ($400) or the full length doug thorley headers ($545)? right now i have stock manifolds, no cat, dynomax muffler. lower rpms it seems fine. but at higher rpms i can feel the engine ready to go but i think the exhaust is holding it back from its...
  11. TJ Wrangler Technical Forum
    I have a 2005 Jeep Wrangler Unlimited Rubicon with (aside from suspension and wheel/tire/brakes upgrades that I have) an AEM cold air intake, JET ecu, and a Magnaflow catback exhaust. I was thinking of getting headers, but was told if it's power I wanted to look at stroke kits, and check out 505...
  12. Jeep CJ Forum
    I was wondering if any one could id the type of headers I have installed on my AMC 304? :banana::banana: :banana: Please don't say rusty ones. :banana:
  13. YJ Wrangler Technical Forum
    I would like to hear what header you used... the stock 4.0 one I got from the donor is cracked and I need to purchase a new one. I would really appreciate some input from some of you who have been down this road before. Thanks in advance!
  14. TJ Wrangler Technical Forum
    Hi all, I have to replace my muffler. My jeep in a 1998 SE 4 cylinder. Muffler costs about $200. I am wondering whether I should just do the whole system while I am underneath the jeep. If there is any chance the headers or catalytic converter will need replacing in the next 4 years, then I...
  15. Grand Cherokee General Discussion
    i have a 95 jeep grand cherokee with a 318 5.2. i wanna drop a 360 in and i know everything bolts up but i wanna put some proformance high flow headers on it. i have had trouble finding many choices for a 95 jeep grand cherokee. on the other hand i can find enough for a 360 engine but im not...
  16. ZJ Grand Cherokee Forum
    I have a pair of Mike Leach CERAMIC COATED hEAders by JET HOt and P&J Performance in North Tonawanda, NY wants $2000 to install the headers that I already have. Does any one know of anyone more reeasonable in the upstate NY area? Three years age it was $300 w/ intake. I think it is the stupid...
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