I can't decide which size wheel to get. Can anybody give me some pros and cons of them. I realize that if I get 19s I'll probably have to get some lowering springs for it. Would i need to do that if I got 18s? Would there be a decent sized gap in the wheel well? If I'm going to have to get springs anyways, I might as well get 19s then. Right?

 

I personally think 18s are good enough and cheaper.....but thats just me who is cruising on stock 17s BBS

 

Well, you probably want to keep the same overall diameter to keep your speedo/odo accurate. So if you go up to 19s with a 35 aspect ratio instead of the stock 18/40 you can keep the same diameter. I'd lower it, either way. I've got Eibach Pro-Kit springs, and they're the perfect height.

 

you dont need lowering springs... for any wheel size it just makes ur car look bad if u put shoes on it and not lower it tho

don;t get spring kits, get a spring+strut kit because lowering springs put added wear on on ur struts and through time they will crap out on u and the warranty will not cover it. if u have the money get coilovers

imo 19's look the nicest on the a4

 

I noticed a ride quality change from 17's to 18's. Im sure 19's will be much worse.

 

absolutely 19 ride is going to be much stiffer you will feel every crack in the road