I've had these installed for about 3 years (without checking the dates) and with the recent hit I took in the rear wheel I took the "movie star" in to get checked out.
Suspension guy says he can't do anything to fix probs as the bushes are too busted up... WTF?
So went and bought new bushes from K-Mac ($70) not bad.
BUT when I questioned the guy at K-Mac about replacing these, he claims they should only last about 2 years.
Something else to add to the equation when lowering your ride.