Extremely happy with the tune I received from Torrie at Unleashed Tuning. I will not be modifiying my GT any time soon to big HP numbers so I thought, what the hell, an extra 50hp for $399, i'll give it a try. Definitely feel a difference in the midrange, plus my fans come on sooner about 185-190. It's worth it if you're not looking for big numbers yet, or if you don't want to add mods. Less carbon out the exhaust is nice too. Thanks for helping me clean up my pig rich GT Torrie! Oh yeah, it was an SCT XcalibratorII that I bought with Torrie's tune for a stock GT running on 93 octane. (BTW, I don't personally know Torrie and I'm not trying to advertise for him...just thought I'd give you my thoughts on a good product):thumbsup