i have looked for three straight hours trying to locate a header, i have a 1991 vert n/a and all the header's ive found wont work they say, whats the deal?? is there sumthing different about the verts u cant use a coupe header on?

 

Because of the beefier frame section in order to compensate for the lack of structural rigidity due to the lack of a hardtop?

 

The front subframe on a convertible has a rear crossmember that gets in the way of most down pipes and headers.

However unless you are looking for a true dual header, the same gains can be gotten by using a down pipe and pre-silencer combination. Racing beat does make a vert specific down pipe for that application.

 

this will be my first time dealing with a header. so what your saying is i can use my stock header? i am unclear about what you said, isnt there some sort of cat inside of the header? to me it looks like it,, sorry for the dumb questions, i want to get this right the first time before i screw it all up

 

The cats are part of the exhaust pipe, not part of the exhaust manifold.

 

You would use the stock exhaust manifold when using a down pipe, however the down pipe would replace the pre-cats, and if you use a pre-silencer then also the main cat.

Unless you have down some porting to the intake system, or are running with non stock induction, a header will not net you any more HP than a good down pipe., as well as a down pipe will be considerably less noisy.

 

http://cgi.ebay.com/ebaymotors/FC3S-...QQcmdZViewItem
would this one work?


-edit, ive changed my stock intake manifold and put on a full cold air setup, if that makes a difference

 

That one is the true dual header (or road race header) that Racing Beat makes. They would know if it fits on a vert.


What did you change it too??? A carb set up???

 

sorry i shoulda been more specific, im running the stock manifold but my induction system now sucks air from my passenger side foglight area,,

 

Well again, a down pipe would be a better choice, but call Racing beat and ask them if their Road Race uncollected header fits a vert.

You do understand that the header you are looking at on ebay is uncollected and requires either a collector or for you to run a custom true dual exahust system, right???

True duals would give you a nice HP and Torque gain, over a collected header or a down pipe, but some people find them rather loud.

 

well i have a full hks single outlet catback ready for this car, i wqas trying to find the best header to catback setup ya know?

 

If you have a single cat back, and no modifications to the intake manifolds and ports, then you are better off just getting a down pipe and pre-silencer (as long as you do not have emissions testing in your area and can stand the smell with the top down).

headers going into a single and not having porting or manifold changes, will not get you any moe HP than just a down pipe.

 

thanks for the info, and i called racing beat, they told me the true dual header is the only one they make for it right now, and he said i have to run their downpipe with it for it to fit, 425 bucks for the header and downpipe, il just go the way you told me to go,, i just want a tad bit more hp thats all, thanks again

 

Why not just remove the 'vert brace'? Add a more compact undercarriage lower control arm brace and use any NA header.

brace:
http://img69.imageshack.us/my.php?image=vertx4ke.jpg

4 point aftermarket:
http://www.boomplustoys.net/images/a...e%20FC%201.jpg

What happened to all the undercarriage CABs? Most stores/shops had them in stock. Don't see any by Cusco/JIC/Tanabe/GAB/Mazdaspeed...... anymore.

Oh, i found them:
http://corksport.com/store/category/...sion_misc.html
http://cgi.ebay.com/ebaymotors/Tanab...QQcmdZViewItem