I haven't tried anything and I've not seen anyone try anything

I suppose one idea is to pick up another piece of soundproofing which fixes to the underside of the bonnet - not sure how you'd fare with clearance / heat issues

EDIT - found this picture on ETKA
On mine I've got the one strip of soundproofing but it looks like there is another piece which goes around the engine item 30A though there is no part number showing


Do the 150's come with this larger piece of soundproofing??
