A Brembo GT big brake system built for the BMW 430i, 430i xDrive, M440i, M440i xDrive (G22, G23), 2021 onwards, rear axle. The discs are 380x28mm 2-piece.
GT|BM calipers are Brembo’s newest upgrade caliper. They are cast using a 4D process that puts the fluid passages inside the caliper body and hides the bleed screw, so there are no external pipes to catch or damage.
Four piston caliper, used on front and rear axles depending on the application.
Disc face: available cross-drilled or Type 3 slotted. Type 3 slots are the pattern Brembo uses in professional motorsport. They give a strong initial bite and keep the pad face clean as it beds in.
Caliper finish: Black, Red, Yellow, White or Fluorescent Yellow. The finish is set by the last digit of the part number, so tell us which one you want with the order.
Not for road use. This system eliminates the parking/emergency brake function
What is in the kit: 4 piston aluminium calipers, 380mm 2-piece discs with bells, Brembo pads, caliper mounting brackets, braided brake lines and the fitting hardware. Contents vary slightly by application, so check the part number against the list below.
Part numbers
| Disc face | Base part | Full part number by finish |
|---|---|---|
| Cross-drilled | 2S19020A | 2S19020A1, 2S19020A2, 2S19020A5, 2S19020A6, 2S19020A7 |
| Slotted Type 3 | 2S39020A | 2S39020A1, 2S39020A2, 2S39020A5, 2S39020A6, 2S39020A7 |
The last character sets the caliper finish or the line. 1 is black, 2 red, 3 silver, 4 gold, 5 yellow, 6 white, 7 fluorescent yellow. S is a GT-S caliper and R is a GT-R caliper.
Wheel clearance is the thing to check first. A 380mm disc with this caliper needs a specific wheel offset and spoke shape, and the requirement for a GT-R caliper is different from the GT version. Send us your wheel size, offset and make and we will read the clearance drawing against it before anything is ordered.
Downloads
Brake work is safety critical. Brembo asks that these systems are installed by a qualified technician, and the kit must be checked, bled and road tested to the instructions supplied with it before the car is driven.
