I'm wanting to a new exhaust to my A6 avant with either twin round and oval outlets. I know the S6 avant valance will fit but I just wondered if anyone had tried the valance from the RS6.

the RS6 has wide fenders so there would be fitment issues

I know that the fender is wider but I'm just interested in the valance as it may be the same fitment like the front grill which I have.

I tried to fit the RS6 valance on my A6 sedan and it will not fit because the RS6 valance is approx. 4" wider than the A6 one.
The S6 valance (http://www.ssip.net/upload/audi-s6-side-1_89.jpg) fits 100%.