Just installed it but no track or dyno numbers. No tracks near me but there might be a dynojet in town. Will try to dyno as soon as I can. I've come from three modded cars, a 480rwhp/460rwtq Mustang GTS, a 480-500rwhp 03 Cobra and a 450rwhp C6 Vette. So even with the tune, this car is down a bit on power but the throttle response is very good, the shifting is snappier and it pulls harder up high than stock. What I like is the tune is a smooth as silk, like stock until you get on it. I wasn't going to go with a cai as I don't think there is much to gain from them (just my opinion as the stock unit seems to do just fine) but I found a used C&L for half price so I bought it. Happy thus far and how can one go wrong with Steeda??