Subaru Caliper Piston 4-Pot/2-Pot

This is a replacement piston for the four-pot/two-pot red Fuji Heavy Industries (FHI) brakes.

Sold individually; specify front or rear. (Yes, the rear piston is more expensive than the front one. We have no idea why.)

Fits all 2006-2007 Subaru WRX, and any other Subaru retrofitted with the red two-pot/four-pot brakes.