great bit of kit. Pros Easy to use. wide varity of options, such as launch control, anti lack, flat shift etc Great aftermarket support Popular with Tunners 100% reliable so far Software is very accurate and tested and tried Cons High purchase price No off the shelf install harness for ST165, Had to use a St185, much cutting Current draw, higher than std, can be damaging to battery if car not used frequently, trickle charger solves this!