Quote Originally Posted by Grimsin View Post
when I had DIY cai,2.5'' downpipe, hv3, incar tune from overkill for 91 octane, I had no problem keeping up with gtp's I raced (only 2 gtp's). and beat my buddies SSEI bonneville from 60-110 mph by almost a car length.
SSEI's are slower then GTP's so that's not a big surprise. Otherwise, a built NA L36 is going to struggle to beat a stock L67. Mine could do it, but just barely. Forced induction is so much better.