I have long TOR's fitted, at 1/2 to WOT they provide a reasonable sound but not as deep as I'd like, certianly not at lower revs.
I've looked for some alternatives in the UK and can only come up with Trident
Trident . An America version is not listed but having contacted them they do a specific fit for our bikes.
Just wondered If anyone has any experience of these or any other good bits of kit in the UK.
