Anyone recognise this exhaust manifold ?

[X-man]

Don't worry, a manifold like that will still make plenty of power. Not as much as a tubular manifold, but its not like its going to cause a cut-off in power. I have seen manifolds like this make 600+rwhp easily with 67mm turbos.

Agreed! I dyno plenty of cars with manifolds like this, a friend of mine builds them, and they have always made good power.

As Dave also stated for the thickness of material you can build a heavy duty manifold relatively inexpensively. Plus you can get the el's and tee's in stainless.

Sean

 

[Reign_Maker]

When you get 400, you'll want 500... And if yur like me, once you get 500, you'll want 800...

I made 512hp with the stock manifold and an adapter plate for a T4 turbo... It would have been interesting to see what power gains I would have made with the same turbo and boost after only changing the manifold to the one I have now, a tubular...