i actually pulled my 160 stat and put the 180 back in with the programmer and the car actually runs better....cold air yes cold block no....it screems at 6k now...also i programmed it with 100otane race fuel in it...don't know if the computer will retain those adjustments......been runninng 93 since the reprogram and seems ro run exactlly like it did on 100...

 

Yea i would go with a pcm tune by a pro tuner. Much more performance for the money. Ive heard good things about pcmtuneforless but that isnt the only place to go. I would compare prices. Another place i have heard good about is www.madz28.com. i would compare prices before i bought.