i'm currently at about 350rwhp. that is only a guess because i have not dyno my car yet. car is set at 13 psi and has 555cc injectors. next month i'll be putting bigger intercoolers on the car but not really sure of which one. what are the difference in stillen, greddy, hks, spearco factory mount intercoolers and which one will be the best for a Z. i don't plan to have more than 500 to the rear so the front mounts not needed.

 

Actually, the flow from Stillen (with Stillen intercooler ducts) and Greddy are better if I'm not mistaken. When it comes time, the Greddy's will be my choice...direct drop-in with no issues.

 

They are all good though...lol The HKS ones are the most inexpensive...I've seen them as cheap as $700...maybe the best bang for the buck.