The issues seem to be ongoing with Savini with Camaro owners.
However, I would like to add my .02 cents to the topic, since I've had 6 different sets of 22's wheels on my Camaro. And the culprit of my front end vibration always seem to be the rotors.
I replaced a complete set of rotors and the problem went away......
I'm not mechanically inclined, but trust the GM dealer working on my car and he eluded with the extra weight of the 22's, and the added friction need for the brakes to compensate for the weight, makes the rotors more acceptable to warping !
2014 C7 Stingray 3LT/Z51
2013 Camaro SS
2012 Camaro ZL1 - 850 HP
2011 Chevy Silverado 3500HD
2012 GMC Sierra 3500HD