Stock sway bar size?
 

What's the stock swaybar size on the FBs?

stock? little :)

the 12a cars have a smaller bar than the -SE's.

The one you want is the 1 1/8" bar from Mazdacomp, Racingbeat or others...

24 or 25 mm up front, I'll measure the back bar tomorrow and confirm the front size, too...

oooops, forgot all about this...turns out the front bar is 23 mm for a GS and the rear is 21 MM...that's 0.909 inches up front and 0.837 inches in rear as measured with a vernier caliper... 8)