I think its great so far, it looks good under the hood and seemed to give a pretty good top end gain. I always felt a good topend rush around 6.5k to redline, its still there but it feels a lot more intense. It was hard to judge where the power came on the strongest because my tach was all jacked because my ignitor decided to take the evening off. Sound wise its hard to tell, my car is gutted and has to have one of the worst sounding exhausts ever. It does sound different though, its just hard to tell. I cant wait for the igniter to go back to normal, I got one from a buddy to try out...hopefully it works. I'll post some more impressions after that.