Viper break kit help

$550 is a great price if the calipers are in good shape. Unfortunately, it isn't really possible to tell if the calipers are good until you use them. There could be a torn seal or something that will need to be replaced and you'll never see that in the pictures.

If the kit doesn't come with instructions then just shoot me an email and I'll mail you a new set of instructions so you can install that kit correctly. I'm the guy that invented that kit and I build those parts.