Stage 1 brake upgrade for the 2004+ Subaru WRX includes StopTech stainless steel brake lines for front and rear, 3 bottles of Motul 600 brake fluid, and StopTech Street Performance pads for front and rear. StopTech Street Performance is a very similar compound to Axxis Ultimate, except that it has a ceramic heat shield between the friction material and backing plate to help prevent heat transfer into the caliper and brake fluid. FITS STOCK CALIPERS.