You say road legal termis.
Now then.........
Are these an aftermarket can made by Termignoni to come in just on the legal limit, or are they just another set of standard cans?
The reason I ask is that some folk don't realise that the standard systems on our bikes are made by none other than Termignoni, Remus, Silmotor etc.
My 900ssie had a standard system by Termignoni, my ST2 had Remus and my ST4S is also Remus.
If they are a standard set, then I doubt you would gain much in performance.
As for sound, just listen to a standard bike for that.
Chips wise that depends what chip you currently have fitted - if it's for 50mm open pipes, then the standard cans will mess the setting up that you are currently on.
The important thing is to check first what you have been offered to see exactly what you are getting & if this suits your purposes.
Now going back to my hangover 'cause this has made my brain hurt.........
[Edited on 30-8-2003 by rushjob]