Sam, I would suggest getting the remap taken off and the stock one put back on , put a stock airfilter back in it and remove the silicon induction pipe and put the OE back on . that way you are back to OE as you have already put the stock exhaust back on . I am not sure what else to suggest that one of the indies you mentioned couldn't find using their diagnostic equipment. have you done the obvious things, maff sensor , lambda sensors, coil packs, plugs :?: