that's what im upgrading from , the old M-spec monza , managed 320rwkw's with it , but the NQ weather gets a bit warm so hence the upgrade , anyways decided to order the stage 3 process west cooler , hot&cold side piping to suit the P/W plenum , 4 inch race box and surge tank and fuel pump ! then should be seeing some decent numbers after a good tune ! kit rocks up monday cant wait to hook it all up