There is a LITTLE more power and can be a LITTLE faster at the track, mostly do to a bit of an increase in efficiency of the system. The biggest gain is on the street in the form a spool time. I went from a STS to my own built front mount and I will tell you, it's night and day difference on the street. MUCH faster too spool. I move the T60 I had on the STS/4.8 up under the hood with the front mount on the 4.8 and with that turbo, it hit like I had N2O on the truck, lol. MUCH fast spool time. Track and dyno results are very similar, cuz your make the same boost/power for the most part. It's just that with the front mount, it comes on a lot faster.