standard issue on black 'americas, stops them going _too_ fast. I'm thinking of upgrading to a smaller plate to get 2 or 3 bhp out of it.
going to continue experimenting with the pipes anyway and will record any progress i make. aiming to keep the really nice exhaust note but mute the volume - was going to experiment with a washer or some kind of butterfly valve.
anyone else got any suggestions for tuning exhausts?
(note :- i'm only persuing it out of a sense of dogged persistance not because it actually really needs it, the level of volume i've got right now is sensible enough)
