on these cars? (especially the srt-6) i wouldn't be without one. just got a 7/70 on the black one and will do so for the graphite next year. purchased it through my 5-star chrysler dealer (i'm lucky to have one close by). never had any unusual down-times (most high dollar was the differential on the graphite...the harmonic issue) and have been very happy with them. manning dodge chrysler jeep in dinuba, calif.