Check this one out http://www.gi-pro.net/index.htm
Got one myself, all though I have not been riding my rap either with or without it It was easy to fit (just plug n´play), starts and idle whitout any problems. You can select which mapping to use eg. 5:th or 6:th gear or turn the TRE off with just a click of a botton When I was checking out the TRE market this one seemed to have the best value.
check this thread http://raptors.ukbikeforum.co.uk/viewto ... 6eeb80364f and you can se my installation.