For some reason, since fitting the Y-pipe (may be a coincidence...) the exhaust seems to have bedded in with a really annoying bassy drone at 2-2500 rpm when hot - makes long journeys uncomfortable and I end up either flooring it to bypass the drone spot or trying to coast under it
Does anyone else notice this on their same exhaust combo? (scorpion Y-back, Berks HFC's and Cobra Y-pipe) really annoying as it sounds fantastic elsewhere in the rev range
Any suggestions to remedy? - been underneath and no leaks that I can see..