I think it all depends on where you do most of your driving. I have never had my car to the track so most of the fun I have is stoplight to stoplight where the Kenne Bell really shines. I've heard people shying away from them because of the lack of top end boost, but I don't think its as big of an issue as most make it out to be. KB makes a point on their website: Would you rather launch at 3000 rpms with 6 lbs of boost or at 6000 rpms to get 6 lbs of boost? Probably an extreme example, but it shows how effective the KB superchargers are. My only complaint on the KB is that KB tells you to use their stuff (ie boost a pump, boost a spark, etc). I wasn't sure how that would work with my combo. FYI, I'm placing an order for a 16 lb pulley. I currently have an 8 lb on but am only seeing about 7 because of the mods. I can't wait to see what the 16lb pulley does.