I just bought an 06 CC with the stock black mudflaps (hard plastic) on both the front and rear tires, and was wondering what are the largest tires (w/ 17" rims) I could put on it without any sort of lifting or leveling kit. I'd like to know what the largest ones would be without taking off any of the mudflaps, even the ones in the front.

You know, I have an '04 and I was wondering the same thing. I want to put some "beefier" looking tires and make it like a pre-runner but, like you, I was wondering about the maximum size also. I will probably ending up using a leveling kit. If I find out any info, I will pass it on to you, if you can do the same, I would appreciate it.