I just fitted a full mongoose exhaust to my s2 turbo. I bought it second hand and is in not bad cond apart from a few scrapes. It sounds pretty good at tick over and when driving the car easy but seems a very loud when at motorway speeds etc. I don't have anything to compare it to so was wondering if this was normal or is my exhaust f****d? By the way wots the best exhaust for an rs turbo anyway?

Cheers