My DD alignment after swapping out my coilovers with a set of MY15 OE dampers. Completely stock save for camber bolts. Front camber "before" numbers were with max adjustment on top with the bottom one at or close to neutral position (no camber added). So you can expect as much as -1.7 with just one set of SPC camber bolts.
Using RS3 Hankook tires the result of this combo is still an understeering car. The toe was more than I'd like but.. Sears auto alignment. My previous alignment tech no longer works at the same location, so I'm just glad it's close to what I want.