Ah so was the peak power figure at 1.2 bar? If so how much did it make at a bar? Very interesting, 230-250bhp is my eventual target in the GT, just trying to get everything else up to scratch before hunting more power! I was wondering what to do about my exhaust (Japspeed). It goes from 2.25" front to 2.5" centre to 3" rear. Was thinking of getting the front modified to 2.5" or all to just 3" and maybe take the silencer out too but wasn't sure on the noise levels. Plus you've managed a healthy figure on just 2.5"! You'll have to let us know how it sounds, noise levels and maybe a vid eh?