94-97 OEM R-Package springs

I've gotta quit buying stuff before I check the SCCA rulebook!

I picked-up a clean set of OEM Mazda R-pack springs, but can't run them in Stock class. Still have the original paint marks on them, and are clean, save for some wear in the spots where the coils contact each other at the ends. These will fit on any NA, but were designed for the Biltsten's. As I understand it, they are slightly stiffer and a little shorter than other NA's, but you'd need to research this to find out more.
I paid $100 and shipping, but will part with them for $90 or trade for a decent NA front sway bar (oversize, don't need another OEM):rolleyes:.

Only the rears are shorter.......