Coming from an S4
 

Just buying a D4 4.0 with 34K miles, coming out of a pretty heavily modified S4 . Loved that car. I own an E46 M3, and a half-dozen classic cars as well. I've read the threads on the turbo/oil screen issues, so I'll likely start by replacing the screen, oil separator and PCV. My last car was an early APR guinea pig for their tune, and I really love their stuff so I'll do their stage 1 and Silly Rabbit intake. From everything I've seen there's no real reason to do an exhaust? Mine is black so I'm going to do a swap to a blacked out IllTek grill. My question: The lower grills where the foglights are on some cars are different on mine, no lights. I'm guessing that's because mine has the full LED headlight option? Or are the round "light" looking options on the lower grills part of the adaptive cruise sensors? I'm coming from this to this, that's my sleeper built 302 Falcon Wagon behind it....
https://cimg5.ibsrv.net/gimg/www.aud...918bf7a5c0.jpg
https://cimg6.ibsrv.net/gimg/www.aud...120a5e0242.jpg
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Lower grills where fogs traditionally are contain the adaptive cruise sensors. The LED assemblies have a bad weather function that is sort of like fogs as far as distributing more lights to sides.

Correct, not a lot of exhausts done. True duals already, and system is valved to help extend torque band. The S6/S7 crowd with the 4.0T's do some of the delete the suitcase center portion, though usually those posts go something like , "yeah sounds better and doesn't...hardly...drone at all, except for ..."

Funny I watched the nB8 platform guys spending $ thousands on exhausts that would give you a headache on a 20 minute highway ride....Thanks for the grill info, I was just curious.