Boots and Seals Kit - BMW F22/23 M2 (Sport); M3/M4 (F8X) Front Caliper (Price is for 2 Calipers)

Very happy with these. The boots have survived 3 days at Watkins glen which is hard on the brakes. I also upgrade to their stainless steel pistons. The OEM brakes aren't bad once you add in girodiscs and remove the dusts shields to allow air flow.