cheers for your help guys im gonna see if the flaps shutting fully if it is then im gonna flush matrix out on weekend.im gonna try and do it in place cos i aint got time and hopefully it will cure it.cheers again ill keep you posted and hopefully get some photos up soon piper285t2,hybrid turbo technics t2,pace intercooler,chip,samcos,full stainless longlife,ap 4 paddle clutch,cts stage 1 lsd,15 psi 175bhp,180lbft.