Exhaust Manifold Help

[trieber]

I am looking at changing out my exhaust system and I am not sure which exhaust manifold I should use. I am already planning on using the flow master dual exhaust cat back. If I am going to replace the exhaust, I am going to do it right. But what manifold is right?

[SuGamer]

Do you have a turbo or n/a? If you have a n/a, then I'd suggest the 4-2-1 header. If you have a turbo, forget about the manifold and leave it alone. No way to put the turbo on a header. Only way to change the manifold is with a turbo ungrade kit like Psi-Fi's. I would get a 3" down pipe from someone like MaxFab.

[proxeyed]

For My N/A, if I did do a header I was thinking of a 4-1. I seem to find top end more useful as to keep up with someone on the freeway (for stupid example.) Is the 4-2-1 going to give me a better overall results in say a 0-60 run compared to a 4-1 header? I know 4-2-1 gives better low to mid range while 4-1 gives better mid to top end. Will a 4-2-1 hurt or help my current top end?

[quicksilverdon]

Do a search and read up. One of the header makers has some quality problems, and there isn't much gain to be had with either a 4-1 or 4-2-1 - apparently stock isn't too bad. After I read up, I decided it wasn't worth the cost/hassle. [:I]

[PT-ERA]

I agree with QSD. (heh, rhymes!) I've read some horror stories about Hedman headers, welds cracking, chrome tarnishing, improper fittings, bad customer service. Do a search. It should all still be there.

[8)] Cruise on

[trieber]

I have a n/a engine. I have done some reading up and hedman was out of the question a long time ago. I was looking more ar JBA, edelbrock, or any other options out there. The big reason that I am up grading is that every little bit of hp helps. I am looking little by little and the next thing in line is the exhaust.

[Cal Cruzer]

I can only say that JBA headers that I have used on other cars have been of the highest quality of any that I have used. The price does reflect this though, you will probably pay more for JBA's, but they are a quality product IMHO.

[fritz_t_coyote]

I have the Borla 4-1 header and am very happy with it.

The key advice for PT headers (besides Beware of Hedman) is to REINSTALL the HEAT SHIELD.

Without the heat shield you run a real risk of cooking the computer... which is a very expensive Bad Thing.

Make sure the installer has the skills and materials to fabricate new mountings for the heat shield... paying a couple of hours extra labor on the install will save you big bucks later.

Good luck

[Cal Cruzer]

I haven't used borla headers on anything but I have used their cat back on 2 mustangs and now my GT. They too build very high quality stuff. I would say either would be a great bet.

[trieber]

Fritz, Are you saying that the factory heat shield will not just fit around the aftermarket headers? The reason that I ask is that I was planning on doing the work myself in my garage. Should I rethink this?