MMR Big Brake Kit Forged Monoblock 355mm Grey Caliper for BMW F20 F21 F22 F23 F30 F31 F32 F33 2014-2019 - MMR06-0501-FC-355-DA - The exquisite MMR Performance Big Brake Kit for BMW F2x 2-Series models uses our own forged monoblock 6-piston calipers, paired with fully-floating two-piece discs in either 355mm or 380mm diameter. Precision machined to deliver breathtaking stopping performance whether in extreme fast road, or race conditions. The MMR Performance 6-piston front brake upgrade for the BMW F2x & F3x is simply a level above anything else on the market for this platform. Designed without compromise for ultimate stopping performance, it's packed with motorsport-inspired features, bringing a true supercar look and feel in the braking department. Will fit all models with the factory Blue M-Sport Calipers. At the heart of our brake kit is the lightweight Forged Monoblock Calipers. Rather than two halves bolted together, they're a one-piece construction that starts life as an ultra-strong forged billet. From this billet, extensive 5-axis CNC machining operations give each caliper its stunning finish. It's a construction technique usually reserved only for the highest-specification motorsport brake setups and ensures the ultimate stopping performance when used in extreme road, or race conditions. The result is a 6-piston caliper that is both stiffer and lighter than any other, combined with exceptional cooling characteristics and stunning detailing. The thin-profile calipers give extreme stiffness and light weight, and aid in wheel clearance packaging - they require just a 5mm+ spacer to fit behind OEM 18" wheels. Finally, we offer a colour choice of either an OEM BMW Blue, Bright Red, Graphite Grey or stunning Nickel Chrome finish. The calipers are mated with a set of our high-performance fully-floating high cast carbon two-piece disc assemblies giving a far higher friction coefficient compared to normal steel rotors. They are offered in either a 355mm or 380mm diameter with 32mm thickness. The 355mm disc requires a minimum of 18" wheel, while the 380mm kit needs 19" or bigger to clear. The discs themselves feature a directional curved vein to aid cooling, so reducing the effect of fade. Fully floating mounting between disc and bell allow for thermal expansion and contraction to avoid cracking. The anti-rattle mounts keep it quiet. Everything you need for installation is supplied: in other words, bolt on & drive! WHAT'S IN THE BOX? T-6061 6-piston forged monoblock calipers - for ultimate strength and rigidity FC-25 Carbon steel two-piece fully-floating discs (available in 380mm) MMR Performance fast-road pads (uses common AP6 pad profile) Billet steel caliper brackets MMR Performance braided front brake lines All required fitting hardware Requires 5mm+ spacer to fit behind OEM 18" wheel. Application Series Model Code Year Variant Engines Code 1 Series F20/F21 2014-2019 All All 2 Series F22/F23 2014-2019 All All 3 Series F30/F31 2014-2019 All All 4 Series F32/F33 2014-2019 All All