I can see this is a really old thread so hope nobody minds me bringing it back to life. When my Three Wheeler was serviced at Morgan this summer the Cat on the drivers side was removed for some reason. It wasn't replaced cos it was gonna cost £300 for effectively nothing. What I have now is an exhaust which chirps, thats the best way I can describe it other than saying it squeeks, and I really don't like it. If I remove the cat from the passenger side and drill out the baffles will that sort everything such that it will eliminate the chirping and give better sounding exhausts? I too was thinking of the G56 solution until I saw this thread so thought for a couple of quid for a 44mm cutter and extension is the way to go before splashing £1600. Like rockabilly_john I would also like to see photos of anybody's cutting set up before I proceed. if no photos at least some advice on what I need to get. Thanks in advance.