With claims of an additional 24hp and 91nm, I always wondered if these tuning boxes were vapourware. I bought the Racechip S to see if I'd notice any difference, and more importantly, measure what difference there is in acceleration.
@ibbi270 I actually did, wasn't night and day but was certainly noticeable. A tune would be much better though I'm sure but for the £100 I got it for... pretty decent
