Originally Posted by CRex

Joe, those pads look about 50% to me. Still good for street use but for your next track session why not invest in a new set? Box these up and you'll have a backup set to get you home if you ever run out on the track.

Originally Posted by TRAKCAR

Or you just push / pull the bolt and hit the spring with a small hammer and it pops right out.

If your calipers are still that bright yellow you are not braking hard enough, should be orangy by now, the real late brakers on sticky tires make them look bronze..

Just like how our for steel calipers go red, dark red, maroone, brown.