The listing is for 1 pcs
Used front brake caliper carrier from BMW E46 328i / Z3 3.0L
BMW OE 34106758120
The part is rusty and unrestored, but in good working order.
These brackets can be installed on almost all E46 models (except M3 and 3.0L models) to upgrade from stock 286mm vented disc rotors to 300mm ones, while keeping the stock 54/22 caliper.
BMW OE for 300mm discs: 34116864058