These are NOT the correct pads for the Q50 with stock brakes! I waited for them to arrive, they didn't look right, I went to the Akebono website and did a parts search. The correct pads are actually ACT1736, not these (ACT1346). Unfortunately I trusted the Revain-Automatch, who told me they would work with my car, but they are for "Sport" brakes with a two-piston caliper. I'm sure getting them back won't be a problem, but it's VERY annoying as tomorrow I was going to pick up a friend at his garage and now nothing is happening! If you're looking to buy Akebono pads, I suggest you go to their website first and confirm the part number!