Hello all im after a chip for my 20xe what do yous recon is my best bet? i'd like something thats going to be setup on a rolling road ideally rather then something that im just going to plug in, thats if this is the best way?
All pretty much of a muchness and all of very limited benefit, raised rev limit is about the most useful thing any of them do.
cossvaux do one supplied and fitted for about 100 quid that seems to work ok, i assume it has a bit more timing than standard as it gives a little more aggressive throttle response, and it also raises the rev limit
dont expect it to be very noticeable though, the standard chip is programmed okay, its just the configuration (air flow meter etc) thats at fualt