I'd always liked the idea of a nice exhaust for my car, and I had heard the term 'mufflerectomy' quite alot.
After weighing up the idea for a while, i took the plunge.
Literally, chopped the backbox off, and welded a straight pipe to the back of the car, and got a tip welded onto the end.
Was very please with the end result, as on idle and low revs, in town etc, you cant tell the difference, apart from the 'woosh' noise on gear change.
The whoosh is louder or quiter depending on how hard you put your foot down, to change gear.
Another plus of the exhaust is, once your going (2.5Krpm + ) the arse end just comes alive. Dosnt sound like a diesel anymore!