http://www.ebay.com.au/itm/271245811952?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 would this turbo be good on a rb30. am i better off with the 10cm rear and the non anti surge front cover.going on a a8 rb30 with forward facing plenum,3' exhaust,small cam.what about 450hp at the engine