Chnage out Dual mass flywheels.
My patrol got a solid flywheel and h/d clutch installed a week ago and a I happy with how it goes but just a little concerned about the extra engine vibration at highway speeds, around town it's great but while on the high way there is a bit more engine vibration, I have searched and got mixed answers about how much vibration a solid flywheel should create, thanks for any input.
It's too bad you didn't do more research on this site on this matter, as it's dealt with in depth on many occasions.
I would council to ALWAYS REPLACE your dual mass flywheel with ORIGINAL parts.
The reason I say this, is because I was talked out of doing this, when it became neccessary to replace my clutch, I was told a solid flywheel would be better.
But no one explained to me, what it'd be better for.
I allowed the so called 'experts' to convince me to go down the sloid road much to my REGRET.
YES, there IS vibration there, and YES, the whole purpose of the dual mass wheel is to ABSORB such vibration in the first place, there's also back lash from the wheels when changing down, all normaly absorbed by the dual mass flywheel.
So, would I replace the flywheel again with the ORIGINAL DUAL MASS set up ?
In a heartbeat

unkrock: course it depends on what sort of ride you want, and how many pennies youve got.
I seriously doubt very much, that the guys who fitted it can do much about it.