I think it has been generally agreed by the people that have had it done, Will350z, SMD and recently me that it is probably one of the more subtle exhaust upgrades. It gives a nice deeper note generally without drone at motorway cruising speeds, is "there" when in town but not "in your face" and has a nice forceful tone at 3.5/4k revs. Exhausts are very much a personal thing and I would strongly advise that you try and hear some before you but, SMD, who does like a zorst , has had three I think and although he liked the noise of the previous systems, for him they were too over powering all the time and he eventually switched to the Milltek and then went for the Berks HFC's, Will and I have since done the same. But then Dave has all the good ideas first