Another fool-proof brake tweak is to use more pistons in the caliper. Do you use sandpaper with one finger or your whole hand? The more pistons there are, the more evenly they push on the brake pad, which means less deflection and more force directed right at the brake rotor. All that means more whoa. The stock caliper features a single 66mm piston, the 16-inch dual-piston caliper features two 48mm pistons, and the 17-inch caliper features two 54mm pistons.