Which exhaust manifold is better??

[Thor]

Hello,

which is the best option for the exhaust manifold? Is it better to use a ported OEM manifold or better a Stainless steel exhaust manifold for arround 500+ bhp? Where are the difference between these options?

Cheers
Sascha

 

[Fast Guy]

I'd go tubular. Are there any 500bhp+ turbos that fit the standard manifold?

 

[red reading]

gt3076wg

 

[Empty Pockets]

I've gone with a 'protech fabrication' manifold, they looked the best to me and their manifolds have been proven to give good gains.

 

[warringtonjack]

I'm planning on using a ported standard manifold with a bigger flange for my 3076. Just because I've got one really, if I was starting from scratch, I'd probably go down the tubular steel route as well. Could post some pics of the manifold later if you want. If I get the car sorted in the next couple of months, I'll let you know how I get on.