Has anyone had any experience with this tiptronic I have just found http://www.optishift.com/index.shtml.



It's half the price of the others and seems to do the job well with lots of great features - $450 plus a $90 generic harness. Programmable, provides tiptronic (paddle shift) and controls 4L60e -80 trannys.

Cheers
Eddy (from Australia)