I found some old post from 03 on the subject but I would like to here from someone that has had them on for a while and you long term review. The stock crank pulley with dampener is what concerns me most. Removing it could be bad I guess?

Anone had one or the whole set on for quite a while now??

 

had mine on for 25k miles, no problems....

 

if you search i have two threads where i post similar links that tell you why you need the damper... the pictures are good.