It's been shown to lose power on the dyno on even medium modded SVT's.
Even though the butt dyno said otherwise...
When I tried it last fall I felt a noticeable gain on the butt dyno. However the track said 2 tenths and over 1 mph slower. I was making 187HP at the time (with an optimized 60mm)
IMO it's a pass mod for a 2.5L unless you can dyno tune for it and are highly modded...
