I've got one of Sprints modded Doms, all I can say is it's a huge improvement. Loads of bottom end so next time out I will gear it up a notch or two!
Made a comparison vid of the modded Dom vs a stock gutted can..have a look!
http://s137.photobucket.com/albums/q...sprintsdom.flv
Then the next day with the same trucks but one with a Redcat tuned pipe modded by Sprint vs Sprint's Dominator!
http://s137.photobucket.com/albums/q...sDominator.flv