I snapped off a piece of cartiledge behind my knee cap that was floating around and causing pain and it giving out on me all the time. I had surgery and didn't drive the Z for like 2 and a half months and it drove me nuts. Even though I had an auto it of course was my right knee.
Mods list- Eclipse 8443 Kenwood KAC-642 amp Elemental Designs eDi 6000's Elemental Designs eDead v3 sound deadening Powertrix grounding kit *won it in a raffle... Yay* JDM Yokohama AVS 5 wheels 17x8 17x9- Just need tires now