Is that the standard suspension? looks a bit high from the pictures.
Are they 9J wheels? Get some slight stretch on the tyres won't have a problem with whatever suspension you go for.
Custom stainless straight through quad pipe, S5 brake callipers, Black diamond grooved discs, red stuff pads, S4 diffuser, EGR delete, stage 1 remap, 19" staggered X5 wheels, G23 custom adaptors, stretched tyres, window tints, coilovers, vag com mods, K&N, led interior lights, led number plate bulbs, pressed plates, black edition grill. Plenty more to be done.
Sportline is supposed to be 45-50mm drop I think you may struggle with that if you have the car loaded. The camber increases as the suspension goes down so will give the tyre a bit more clearance but it does look like it would possibly foul.
As said above going for a narrower tyre will help but if you have good tyres on the car at the moment you would want to keep them.
You could go for a lower drop as the tyre will be closer to the arch the gap looks smaller, well it does to me anyway.
The Pro kit is supposedly 25-30mm or try some Eibach springs.
Fitted them to my SE, Theres some pictures in the build thread.
Alternatively a set of coilovers will give you the option to set the ride height to what ever level you want. A decent set won't be much different to the cost of the Bilsteins.
Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html
Yeah, after looking at that I think the pro kit would be the safer option.
Just wondering with the bilstein B12 kit, if the sport shocks are shorter than our standard SE shocks so might get a little more than the 40mm you said you got on standard shocks