Except they won't stop you as fast as the OEM setup. The reason no manufacturer and no individual has ever posted 60-0 distances for any aftermarket setup is because they don't stop as well as OEM. If they could beat OEM, they'd be screaming it very loud and very often.

Your specific setup is definitely not as good as OEM for regular driving. The ET500 is a higher temp pad meant for track use and will probably cost you at least 20 feet of stopping distance from 60-0 vs. OEM. The ET300 is closer to OEM, but again, if it stopped better we'd have heard it by now.