The standard disks on the 2005 wrx?
 

Hi everyone! So, just passed the MOT after having the offside ball joint done... but its done now.... no advisories so all smiles!
I've been looking at the disks on my '05 wagon and suddenly taken interest that they're grooved and drilled.... were these standard? Have noticed before but then saw a standard replacement for a similar model and noticed they were just flat with no extra venting..... I'm having all 4 tyres and yellow stuff pads put on next week, so if I get these sorted I can approach the subject of the disks! Can anyone shed any light?
Thanks :)
Luke
https://cimg1.ibsrv.net/gimg/www.sco...bca723f018.jpg

Clearest I could get it

They're aftermarket. Standard discs are not drilled or grooved.