http://bansheehq.com/forums/index.php?showtopic=164851&page=1
The link in this thread also has a lot of photos to really illustrate what is being done. Again it's really just part of a total package. You can have a non over ride tranny but still reap many of its benefits. It takes a bit of work but it is worth it. Few good guys will set you up with one. CamATV, Cam at Redline, Brad Tyson at Tyson Racing.