I got my OBX Turbo header today right before work today. I fits a 1993 Honda prelude si h23a1. I was excited and open up the package to notice it is a shiny nice header but welds really are crap! I almost just wanta send this baby back now. Any suggestions on weather I should put this on, im sure it'll hold but but it don't look really the quality I expected. What company's make a better header?

 

those tend to crack by the waste gate placement.
best is sent it back get your refund, and look around here for some good quality ramhorns or get a log mani.

 

AFI has some great stuff and they offer a LIFETIME WARRANTY!!

I can get you a good deal on one.

 

People that buy obx usually can't afford a nice ramhorn and have an ebay turbo kit.
Just look for a quality log manifold.

 

What's the price on the afi header, I might be interested. I never really heard of them.

 

I am installing a turbonetics t3/t4 Turbo and tial wastegate I am using a aem wide band O2 setup along with a aem fic, 1000cc injector dynamics saturated injectors, walbro piggyback pump, fuelab regulator, etc.... So I think I got some good parts, I just don't want to have a problem with a crappy head pipe. Unless im just being a little too particular. I can't seem to find much on the net about AFI company but interested in what one looks like for the h23a1 and a price on it.

 

OBX is junk. A quick search on here would have told you that before you bought it.

A quality basic manifold will run you 500-600, a much nicer one 1100+.

Sounds like you need to do a little more research. Return that OBX header if you can and get a better piece. AFI has a website, and there are many other companies offering manifold fabrication.

Most places aren't going to have a H23 manifold in stock, because it isn't a popular motor to turbo, but if they off a h22 manifold, they should be able to make a h23 manifold pretty easily.

 

Refer me to someone who does a good work on import turbo manifolds. I live in a place where no one knows anything about imports. So I really don't know who to trust when it comes to fabing one.

 

i remember reading that you can redrill an eclipse turbo manifold for it to fit on our h23? correct me if im wrong.

thanks

 

It doesn't matter if you are making parts for an import, a domestic, or a washing machine. A good fabricator is a good fabricator. Just find someone who is a good welder and they will have no problem making the 4 holes in the cylinder head flow into 1 hole for the the turbo inlet.

I used to have a LoveFAB manifold for my H23 and that was excellent quality, but the price reflected that. Not a whole lot of H23 options off-the-shelf....

 

AFI for the win!

 

You know I enjoy fabricating things of all sorts myself. I am a machinist and know one in particular welder that is a frickin scientist with any welder. I do belive I will run the obx and then Fab up something in spare time. Anybody know that designs work best, and what is typical exhaust temperature at the manifold area?

 

check out all in fab, doc racing, trackforged, speedfactory they all make awsome manifolds