Saab Link Forums banner

1 - 9 of 9 Posts

·
Registered
Joined
·
2,170 Posts
Ya more info man, are you thinking about doing a custom job? What kind of car do you have? Also Nick has some for sale.
 

·
Registered
Joined
·
6,468 Posts
I think we're all a bit confused about what you're talking about. A bigger exhaust manifold produces minimal gains, if any, with a turbo. It helps much more with an NA car.
 

·
Registered
Joined
·
745 Posts
Most are recommending against it, because they seem to crack or loose seal at the head unless built really well.

Apparently a lot more mods would have to be done to appreciate the increased flow. Suppose if you're running some huge ass turbo you wanted to spin up...the increased exhaust flow might be more appreciated....to avoid lag. Not to mention a properly matched super Intercooler

The even runners are supposed to be good for increasing, but equalizing exhuast flow .. Guess its a matter of looking at how well the flange and runners are built, , the coating used, and more you probably already know.

But I believe MIke's correct, in that you'd probably notice more immediate results on a non-turbo. That's how it was for some of my cars(N/a straight 6, v8's) ....header was one of the first improvements on the engine for me.

Course you could always buy one to show us the dyno'd results...

good luck..
 
1 - 9 of 9 Posts
Top