The stock injectors flow more than the stock turbo. No need for the upgrading the stock fuel system. You wont damage the motor with a stock turbo unless you do something really dumb.

 

thnx for the info cincy im jst paranoid about tht kind of stuff , but i might rethink turning the boost up on my AWP to around 15

 

Most run 18-23psi daily. The power increase per psi drops off extremely fast past the +/-18psi mark.

 

So running 21psi is just a waste then? Sounds like it would be smarter and better for my turbo to just run around 18-19psi.

Im getting a 42dd downpipe this weekend (just the upper portion, $420) and im ordering a magnaflow muffler and high flow cat. What size exhaust is the most ideal for our cars? I was going to go with 3" but i've heard with the stock turbo 2.5-2.75 is better.

 

21psi is fine.

 

a 3" downpipe to 2.5" piping will be fine for ur setup and youll be happy with the magnaflow i hve one on mine and it sounds great, its a nice low deep tone, not ricey at all