Converting s60r turbo running gear to st220 engine gearbox and 4 wheel drive system.will be tuned to round 500bhp+ at moment i have done custom exhaust manifold down pipe simota panel filter in original air box with custom air feed pipe more direct than original setup both cats removed bigger throttle body volvo injectors port n polished uprated pistons remaped by psl tuning stage 1+ running at moment 285bhp dyno graph to prove that was before it was stripped out.