I know exactly what you're saying, this is why i ask whats so special about them. I know standard bolts are stretch bolts, but high tensile steel shouldn't stretch, and i can't see there being much else special about them.

Look at the picture on the burton site, looks like an identical thing. I'm going to the local fasteners soon so i'll try and find out what the deal with this ARP stuff is.

http://cgi.ebay.co.uk/Ford-RS-Turbo-...QQcmdZViewItem