The carbon metallic pads that Autozone sells are the same ones TRD sells, both made by Performance Friction.

I've used them and from personal experience, I can tell you that they suck when cold but work well when hot. For 99% of street driving your brakes are relatively cold, so you will be much happier with stock OEM pads!

If you want a higher friction pad that works well when cold or hot, look into the Hawk HPS or Raybestos BruteStop pads.

'97 4Runner, '06 F350, '86 4Runner, '05 WR450
http://home.4x4wire.com/erik