If I get a full exhaust (3inch or greater) including turbo dumps, and install power fc, maybe 15 pounds of boost, what kind of performance should i expect? Roughly what HP would i achieve? standard turbos aren't much good for much more boost afaik, is this correct? I have a K&N airbox insert, is this sufficient?
Is there anything else I should be doing? oil air separator maybe?
The car is mostly only driven on the weekends, and will attend the odd track day.
Cheers
Simmo