Exhaust manifold replacements

[JeepingNet]

My exhaust manifolds need to be replaced on my 05 LJ with the 4 O2 sensor setup.

Should I just go with the OEM setup of two exhaust manifolds or should I go with an exhaust header? Price appears to be nearly the same. Figure I should replace the cats while I'm there.

Any suggestion on what brand for the manifold or header and down pipes/cat?

Thanks!

 

[TJ Starting]

I fixin to redo my whole exhaust system and I think I'm going to try one of the ehay torque tube style headers. Not sure if they make one for the 05s though. Then afe for the down pipe/catalytic converters.

 

[astjp2]

A lot of money for a system with more potential for cracks with those headers and little gain in power. If you had a 7120 casting head, cnc ported, oversized throttle body, 5.7 hemi valves you might see the benefit of a header but a shorty is designed for high rpm where a long tube will keep the torque down low. Ymmv. Good luck

 

[TJ Starting]

A lot of money for a system with more potential for cracks with those headers and little gain in power. If you had a 7120 casting head, cnc ported, oversized throttle body, 5.7 hemi valves you might see the benefit of a header but a shorty is designed for high rpm where a long tube will keep the torque down low. Ymmv. Good luck

If your referring to the ones I posted, I'm not really chasing power. I've heard good reviews with these ones off of ebay but its a Banks Power design which also has good reviews.Mostly just wanting to change things up a bit just for fun and maybe a change in exhaust sound. As I mentioned in my previous post I'm also redoing the whole system all the way out the back with different muffler and tucking it up higher if possible.

 

[jeepguy03]

I would go with a stock one. Every ebay header I've tried on different vehicles had fitment and build quality issues.

 

[JeepingNet]

This is my feeling as well just wasn’t sure if their might be a perferred solution. Think I’ll order stock style and go with afe cats.

 

[05 White X]

My two cents, stay away from AFE. I bought one of their shorty headers leaked badly and #6 tube touched the intake. Took over a month to get a RMA # and I had to pay the return freight. Might look at RHS they make a long tube system for your year Jeep. Magnaflow makes a nice cat back.