They aren't very expensive, and mine lasted 6 years before the drivers side broke and was replaced with a new one. Now my right one is giving away- back to the dealer to buy a new one (they aren't any better, just new).
2005 MAGNUM R/T
JBA headers, Aeroturbine 2525XLs, Blastin Bobs 9db pipes, Eagle intake manifold with Cams spacers, 180 stat, 4" behind the bumper true CAI, Stack Performance strut brace, Stack performance chubby sway bar, Bwoody anti sway bar links, SRT front springs, Bilstein struts, BT Catch Can. Other BT goodies. Soon-- 6.1 cam
2012 Challenger SRT (Wife)