[Parker]

What are the most common increases in reliability for the exhaust manifold over the ever failing OE part?

 

[jeeperman]

I don't personally have any experience with any aftermarket headers, but a couple of guys that I 'wheel with have the Borla header, and they love it. They have only had it for a couple of years, but no issues to date with it...

 

[Parker]

I've read many times Borla has fitment issues. One of my friends went with the Banks. I can't remember what vendor he got it from but he paid around $390 and after seeing first hand the minimal gains I personally can't see spending that much. For amusement while I was at a local parts store I asked if they carry them. I was presented with one that looks similair to others I've seen on the net with flex joints welded on 1 and 6 runners. They offered a 1yr warranty with it at the price of $190 which included both gaskets. Has anyone ran anything similair? I'm trying to stay away from spending what a Borla or Banks cost because my WJ cost me a $1500 in repairs just last week.

 

[1BLKJP]

Take a look at this place. http://carpartstoyourdoor.com/jeepexhaust3.htm 119.00 bucks shipped to your door. Looks to be the same as an OEM from a 2000 or newer. And I haven't heard anyone complaining about these.

 

[jeepmutt]

Buy headers. Stock exhaust manifold on the TJ, although similar in design to headers, is notorious for falling apart. Why do it to yourself again? I put plain black headers on ... Hedman maybe, Borla ... I can't remember. It's a PIA and took me 5 hours but it isn't difficult. I drive my Jeep, not show it, so I saved $ and went plain black. For the intake, I cut the tube from the air filter box, put a K&N on it, free breathing now.

 

[Buster]

The Borla fit is a problem, especially, if you have an auto. And the bad part is the people at Borla are entirely to arrogant to admit it! Buy anything but Borla. My Borla head broke at the 1 year mark, and, it was a big pia to replace....

 

[1BLKJP]

Buy headers. Stock exhaust manifold on the TJ, although similar in design to headers, is notorious for falling apart. Why do it to yourself again? I put plain black headers on ... Hedman maybe, Borla ... I can't remember. It's a PIA and took me 5 hours but it isn't difficult. I drive my Jeep, not show it, so I saved $ and went plain black. For the intake, I cut the tube from the air filter box, put a K&N on it, free breathing now.

There's always a rather large debate about this issue of manifold vs. header. After 2000 models I haven't heard any issues with the OEM manifolds falling apart. Now the 91-99 4.0 headers are junk I will give you that. I currently have a busted manifold on my 99. But I am going with the stock replacement for 120 bucks. I haven't found much info that says the performance gains from a 120 dollar unit to a 350 dollar unit are worth the added cost.

I would be interested to know some of the other folks take on this?