320d M Sport
maybe an overstatement but last week when caning it in first id hear a kinda resonating around 6000rpm (AND NO ITS NOT THE 4K EXHAUST RATTLE!!).
THis week its worse (quite loud now) and its doin it from 3500-7000. It does sound like an exhaust problem and im wondering if its the downpipe or a mounting point?!
Can anyone help please?!!