I think that the stock exhaust might still be a little restrictive but theres only one way to really know that.

I'm going Greddy 70 single with Berk high flow car myself.

 

[QUOTE=TRBOKEV,Apr 10 2008, 05:02 PM]What did you dyno and what exhaust are you running?

 

the baseline on that is a custom tuned w/ greddy emanage setup with I/H/E

 

i'll ask my tuner to give me a plot of my turbo against a stock ap2...

 

That's exactly what mine did with a 70mm TP and 3 " exhaust. I'm glad I'm not along. I left it that way though. I think 12psi should hold for awhile. I drive my car like 4-5 times a month and don't really get on it much.

 

I know the stock exhaust will be restrictive, but with a tp, it should help just a little bit..

I'm planning on buying the turbo back greddy is supposed to be offering for this kit.

I want their 70mm Downpipe (which is supposed to go all the way to the exhaust so no need for a TP or cat, if not 70mm TP) to a 70mm dual exhaust (havent picked one yet).

 

What exhaust and did you have a test pipe in?
Nice numbers there.

 

I dont see any problem with a creep from 9-10 psi at 7K to 12 psi at 9K. Supercharger guys do it all the time up to 14 psi with the stock head gasket.
I think it would only be a problem if you see 12 psi at 4K all the way to 9 or (8 k for ap2).

 

sorry forgot to mention that.. stock cat, that is why it boosts up to 7.5 around 4k and down to 5.5 or so by redline..

 

You need a high flow cat if your boost is dropping off in the high RPM's.
Was that with a 70MM single exhaust or stock or?