Hello Chaps,I've just noticed my Greeves GYT-R on OZVMX site,It's actualy a factory prototype thought to be the only one in existence.Raced in the early 70's in England with limited success it was always the first into the first corner but would be often be seen pushed back to the pits.It now resides in Perth WA and is used on the occasional club run with limited success.And yes those pipes are loud, 108 decbels I think!!