Does anyone have a ATI supercharger or heard anything about it , as how much more power it gives u ,i seen 50-55% gain just wondering if someone actually have the dyno numbers , cuz i was thinking about gettin one and wanted to know what everything thinks.....

There are at the SEMA show, sooo I'v done calculations but no actual dyno numbers. You can ask some of the people in the 'justice will debute at SEMA" thread.