hi there,, ive got a 51 1.2 dynamique, the exhaust keeps going at the joint between the fromt mount and the flex at the manifold,,the clamps nackered cos of it, but the mounting doesnt seem to do its job properly ,, is there a plug u can get for it? its just a mount with rubber round the inside and the exhaust just bounces too much, but the pther ones ive found online are the same.. any advice? thanks