hmmm, it aint a prob to be honest as ill just take it off mine... it still sucks though! What about the noise from the head? I am tempted to swap over my cams in the car that sounds sweet as a nut and see if that is it... i have been reading the tech essay archive and apparently you can squeeze oil out the lifters to stop it from rattling.. dont know if that will work tbh... fooking turbos!