If you run CTS V wheels step in

[Cobra]

Would like to know what your tire specs are. Non-rolled lowered or stock height, rears only.

Thanks

[BuildItYourSelf]

Stock 295s .
Need a roll and trim the plastic and move the brake tap on the inside. to slap on the 305s.
+56 is the sweet spot you can run 295s stock height or lowered. 305s I don't think you can lower very much past the fender edge.
Search feature will answer all your questions. Or even Google.

[jzpiano]

285/35/19 stock tires, lowered on Pedders Coilovers, non rolled and I don't get any rubbing.

[Cobra]

Thanks all