I have run 5mm spacers (w/ extended bolts) for a while and I have not had any troubles. But not to say the next person will work out the same.
Honestly I would suggest maybe doing 10mm spacers all around, this would give you a more flush looked with those TIRE sizes. With that tire size in the rear + the +10mm spacer you might need a LITTLE extra negative camber. maybe like .5 of a degree and you should be good
MSport front/ Hamann Front lip/ M3 Side Skirts/ Custom M3 rear bumper/ VRS Type 1 Rear Diffuser/ ACS style roof spoiler/ AC Schnitzer Pedals/ COBB / VRSF FMIC/ Simota CF Intake/ Magnaflow Axle Back/ AccuAir/UAS airbags/ 19" K3Projekt IND EV-5 wheels