just managed to get my scorpion cat-back exhaust fitted!before going away,nice deep burble on idle,not too much louder on full acceleration,hardly noticeable at steady motorway speeds!,got rid of the annoying as fk 4k buzz yipee!!.
downside,if your in too low a gear i.e 30 mph in 4th and floor it,,bloody hell whrummmm very deep,very loud,same if on motorway say 80 in 5th and floor it!.gradual acceleration fine.all the above was done with no stereo on with music on not so bad,also drove straight off when fitted so sealant prob not set fully,and i presume once it gets driven it will deaden down a bit!
looks ace