I thought I'll share this - I reckon it's a good test of the stock parts.
The only mod on the car was camber bolts, camber 1.5 all around & alignment set to pretty much zero all around.
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whole album here)
Let's start off with the tyres (front) - they've seen a bit of use, huh?
And how the disc & pad should look - the rears:
And now the sobering truth about the track day pressure - the fronts.
No, those are not grooves on the disc, they are brake-pad material. Burnt & melted pad material.
Also, the edge of the disc is completely white - I'd say it got pretty darn hot
The fluid does not look too good, either.
I've sanded back the pads, they're still usable-ish. They have seen the fires of hell, cracked and battered
They wouldn't withstand another day like this. Their thickness was ~9.7mm before the day. Now they are 4.5-6mm only (unevenly worn). Half of it is gone! (fronts of course)
They'll be good as "if all else fails" spares to drive home just in case.
So yeah, after this test (I really had to see it myself) I'd strongly recommend replacing pads & fluid for tracking, especially if they're not in pristine condition as these were.