You mean as in less valve train clatter and less vibration squeaks and rattles? My M8 with V&H slipons doesn't sound much different than my 06 RK with the same mufflers except the M8 has a slower idle.
M8's IMO don't sound very much like ANY TC I've heard. When I did the stage 1, the new AC gave me a very loud valve train noise and I was stuck with it until I got the PV tuned map.
Even now with my cam and exhaust upgrades, my M8 doesn't sound quite like the TC's I ride with or any others I've been around. Dont get me wrong, I like the way mine sounds, just different than others.
You mean as in less valve train clatter and less vibration squeaks and rattles? My M8 with V&H slipons doesn't sound much different than my 06 RK with the same mufflers except the M8 has a slower idle.
The exhaust note on an M8 will never sound like a Shovelhead or Evo, which is what most people mean by classic Harley sound.
I am not saying it sounds bad, but it will always sound different.