So here are my friends cars:

Ron's 2005 Subaru WRX STi with bolt-ons:




His bro's stock as a rock 03 350z:



My other friend Rob's small bolt-on 203awhp (Mustang dyno) WRX:



And Jimmy's G8 GT that has full exhaust and CAI and tune, 350rwhp on a Mustang dyno: