Originally Posted by PowerFocer
I have the "street" mount from CFM, and I've decided just to stick with it till it breaks in. Thanks for all the info guys.
I got the street CFM and if mine has broken in - in the last year that I've had it in - it shows no signs of reducing vibrations, especially with the A/C on.
As an aside, my rear license plate rattles at the same frequency so at low rpms, hilarity ensues for me or sometimes I'm really pissed off. Depends on the traffic.
Good luck - at least you'll enjoy the lack of play between shifts :)