Can anyone advise me or have had this same problem? exhaust sounds like its blowing/bit louder but took it to 2 garages including audi specialist who couldnt find anything wrong with exhaust. called audi but they said 85 p/h to look at and i thought........ Turbo kicks in a few hundred later as well. the exhaust sounds worse at cold and on idle it dips up and down a little. theres definately something wrong but i dont know.