Hey Nero,

I did some checking and I don't think there are any kits that actually come with a new dampener. The difference in kits is that some of them can be installed without removing the stock dampener and some of them require you to remove the dampener in order to install the pulley. You definitely do not want a crank pulley that requires you to remove the dampener. That's where all the trouble comes from. AEM makes kits that retain the stock dampener, but make sure cuz I think they also have kits that eliminate the dampener as well