erwheezy

i'm pretty sure they are 285/35/22. That's the OEM tires size for the 22's

RJC 1

Diggin those rims

hayde_bre

These actually don't look so bad, and it looks like easy enough to remove in the summer and put them back on in winter, because I just don't want to get salt/rock/other junk in the winter on my ride, generally when the pavement crumbles and we get potholes with lots of small rocks/road crumbs.
Sadly it is out of stock. I suppose you've been using them since you installed them back in '16, how are they holding up?

audisession

I had a version of these ebay chinese mudflaps on our old X5 and they looked OEM, fit exactly right.
I know it's sometimes frowned upon to put knock off parts on a car like this but it's sort of like the puddle lights -
For such a simple plastic part that's going to get mud and rocks flung at it, I figured the $35 versions would work fine.

I just ordered a set for the new Q7 we got and will report back.

charliehereforyou

At my 20K service on my 2017 Q7, I had OEM (expensive) splash guards mounted on all four "wheel areas" and they don't look bad at all. I did however notice that my on highway MPG dropped from my usual 25-27 MPG to around 23 MPG. Not real happy about that. They did a great job installing and they are very secure. Embarrassed to tell you how much the dealer charged for putting them on. I could not have done it myself. I'll send pics later but we're right in the middle of a snow storm.

MoInEd

I have the OEM ones on ours. Had to remove them when was doing the 3M protection on the lower body part and installed them back. Tricker than what it seems it would be.
They help reduce the amount of mud/dirt on behind the wheels; now those areas have the same level of dirt like everywhere else at the lower body. For me the dirtiest place is usually the rear end/hatch.