my mate had the masterpower t70 with a top mount manifold and a 45 mm PSR wastegate with forged pistons etc, and made 330rwkw on 1.8 Bar. He had a standard head so now that's being worked and we are changing turbo again, it can pull good power and we hit full boost and about 4800rpm and it kicked really hard, but it still felt too laggy for a daily driven car. but when it came on boost it was crazy.