[talkingcars]

I vert much doubt you will be able to make much difference to the sound of a janspeed system.

I went to my local bespoke exhaust builder (Powerflow in Redhill) and told them what I wanted - free flowing, quiet at tickover and at cruising RPM but a bit of sound under hard acceleration, a seperate decat and twin outlet, they were surprised by my choice descreet tail pipe. 3 hours later it was done and was even better than expected.

The term they use to describe the sound is mid sport.