Level Ten....thats ur best bet...i got a civic with an auto tranny...and im working on getting a Jackson Racing Supercharger into it...
www.LevelTen.com they make performance automatic transmissions, u take ur tranny and send it to them and they upgrade it, there is a 3000 dollar package that is a whole new performance tranny, and there is a 300 dollar upgrade to ur existing tranny....i hope that helps you out
