I would have to search my computer for a sound clip but my 97 VFR had an M4 slip on. It was not a GP style like you have shown in the photo, but may I offer up that it was by far the sweetest sounding slip on I have heard to date. Sound was very deep and throaty and had the sexiest growl when under full acceleration. Gives me quivers just thinking about it. If only I had kept that bike..........
End of thread · 9 posts recoveredWayback Machine snapshot 18 Feb 2015