I got my car put on TEIN S Techs last Wednesday when I started to notice this very subtle humming noise. You wouldn't hear if you weren't paranoid like me haha. It's coming from the passenger side and I feel like it's the rear but I could be wrong. Might I add that I'm riding on the tread bars but the only time I can produce the noise is at around 40mph or higher. The car hasn't been aligned yet and I don't think it's a wheel bearing problem as it's not loud enough.. anyway please share you thoughts on this. Thank you in advance!OOPS i'm just gonna go ahead and stick this under the versa forum under suspension. sorry