seems down on power for a bpu car, thats near enough stock power, probably getting that little extra bhp from the intercooler and exhaust. if its only hitting 1 bar then youre probably hitting the fuel cut. a nice bpu car will produce 380bhp-400hp, mine is running this. iridium plugs, fcd, fuelpump, full decatted exhaust with 1.2 rr, i was going to do the injectors but dont want to risk putting to much stress on my car, im more wanting to keep it at a nice power lvl. since ive put cat back in for mot, my car is boosting 0.5bar then spikes to upto 1bar very briefly and maintains 0.8bar under hi speed. if you want big big bhp go single.