GT186 exhaust options.

[10 inch Terror]

Hi all,
I started building a GT186 motor 4 years ago and the original intention was to use a Clubman type pipe to keep the scooter looking as original as possible braking and engine wise. I’ve now decided to go down a different route by fitting a hydraulic front brake and expansion type pipe. I don’t really want to be £200-300 into an expansion chamber and was thinking one of the Viet type pipes would do the job. I’m using the 25mm Dellorto carb jetted roughly for the Scootopia type Clubman and I was intending to run it through the original ( modified ) air box. This is also subject to change depending on the feedback I get from this post. Is anyone running a 186 with a Viet type pipe that could give me some pointers? Thanks in advance for any comments / pointers Pete.