someone on here did a pretty good guide, literally couple of months ago. Its disappeared though?
Are you buying it brand new?
Its fairly easy if you buy it brand new as comes with instructions on a piece of paper![]()
I would strongly recommend after any change in ECU calibration file that you check the fueling over with a wideband.
After literally 5seconds of searching - http://www.cliosport.net/forum/showthread.php?658682-Rstuner/page3&highlight=rstuner
Post #57
You usually get a manual with it anyway, if not there is a pdf file on fastchip.