M Perf brakes are also available as a port installed option as well, so you can order at the same time you order the car if you want. Same thing goes for the SS exhaust for the 335i.
2013 F30 335i 6MT M-Sport - Blk Saph. / Beige Lthr / Wood Tr. - Tech Pk - VSS M-Adp. Susp. M-Perf Stainless Exhaust M-Perf. brakes