Pre-cat PW812952 RM 185.54

Front pipe PW910141 RM 192.44

eh you got blm and persona? lol

oops i think i blurcase you for someone else liao

i fade bosch standard on normal road braking, hell, i fade RS too

personally, i'm not sure either. the links i googled seems to say it's a myth.
however i do have butt dyno feeling that the drilled/slots does seem to help in braking . if anything they SHAVE the brake pads more aggressively and with that kinda friction, one might think you're getting better stopping power? gas/water channeling/repellent aside.

so, perhaps the dimples are for ricers? or maybe they do something as per the original x drilled does, just perhaps a little less effect since it isn't complete drilled through, albeit trading off with less risk of cracking.