Hi, i have an 03 172 and i think i may have the 4k rattle as there is a definite buzz as the revs drop past the 4k mark. As its my first car to have warrenty, im just wondering how i would go about getting this sorted?? My car is over a year old so do you think there will be any probs getting the centre section of the exhaust changed as this is a fairly common fault??
Cheers
Matt