LOL some have had issues some havent buddy, for the 06 its a tossup , the issue isnt bad so to speak, its usually a vibration that is there for a couple seconds on take off, then goneNorCal SRT-10 said:Does anyone have feedback on Stinker's lowering kit for 06 QCs? I want to order it but am scared of that disclaimer about the possible vibration issues.