My specs are listed in my signature below. Tons of us have similarly aggressive settings. Some might call it really aggressive but most would just call it aggressive. Really aggressive in my mind would be offsets in the high 30s. Really really aggressive would be trying to run wider wheels or taking the offsets down in the 30 range. Same would apply whether you are using 18 or 19 inch wheels.
Injen, RR OCC, MadDad Whisper, donut spare, 19x8.5et43fr 19x9.5et45r Volk LE37's, rear fenders rolled/pulled, Nitto 555 225/35fr PSS 255/30r, KW V1's, AR coated catless dps, Cross strutbar, CF grills and license plate holder, rearseat removal, iCarbon diffuser and front lip, ETS black anodized FMIC, M3 control arms, Quaife, ER chargepipe, ForgeDV's, Topspeed Custom Tune, V3sims, Braille, Andrey_GTA rear hub mod.