well it ran 1.1 on a hybrid, dodgy clutch, mbc which was pants and pulled 180. so engine has handled 1.1 boost pressure. be it with less air to td04. dunno power wise as td04s ran on stock ecu at .4, ebc upto .5 .6 if i feel the extra powers worth it. decided not to dyno it as it weren't mapped and it should be less than my hybrid. at .6 it doesn't feel far off the hybrid if thats poss? so if the map was a good quality map would you run 1.2, 1.1 or a bar? anyone else have any views. more the merrier. cheers