Installed the EVO stage 2 kit and WOW! Very satisfied with the outcome! Kudos to Fred at EVO for an excellent tune/kit and service. The puller tool worked great, plug change was a non-event and boy does that S/C come on fast now! No driveability or pre-ignition issues. Hammering it now results in a "blurring" effect outside the car (much like going "lightspeed" in a Star Wars movie).