Pretty sure thats a guy on RTOC called Mudslinger up in Scotland IIRC, that was on the RR day a couple of weeks ago.. a guy with another GTT made 190bhp & then turned on the NOS & made 330bhp :shock:
They were pretty accurate apparently as well as the standard clio's that came made the power they were quoted.
& yeah it runs EFi & ITB's i think, he's spent some serious £££ on it, fair play as well.