Yeah mate, got pulled for having a 'overly loud exhaust' and window tints aswell, wasnt just the Police though that was the problem. VOSA pulled me too which are incharge of all the MOTs and stuff over here. Had to get it re Mot'ed with the tints and exhaust removed which has now been done. Tints and exhaust wasnt removed for the MOT though, and guess what?? It went straight through. They put a Prohibation Notice on me saying that my car was unsafe for the road for 28days. But that got removed the next day so... Oh well its all sorted now.