with the rpi exhaust sound is the same except, at high revs you can hear the air being forced through like a jet engine, very loud and alitle annoying on the motorway.......
the final cost ermmmm.................too much to be honest.
Simpson said boost gauge is essential, so thats the next purchase.
the final cost ermmmm.................too much to be honest.
Simpson said boost gauge is essential, so thats the next purchase.

