BM57 or BM50 for Skyline, Silvia, 180SX and 300ZX
Both bolt to the factory booster and lines, suit ABS and non-ABS cars with the included tapered grub screw, and work on the street and track. The BM57 has a 27mm bore for shorter travel and firm pressure, for drivers who brake by pressure. It suits cars running 4-piston calipers only. It is right-hand drive, with a BM57 LHD for the 240SX S13 and S14 and 300ZX Z32. The BM50 has a 1″ (25.4mm) bore for standard travel and balanced pressure, a familiar street feel in a fresh RHD master.
27mm and 1″ upgrades for other cars
- 350Z Z33 and Skyline V35: factory Brembo cars only, replaces 46010-CD027, LHD and RHD.
- 370Z Z34 and Skyline V36: replaces D6010JK01A, right-hand drive only.
- 86, GR86 and BRZ (ZN6, ZN8, ZC6, ZD8): 27mm, up from 25.4mm. All RHD cars plus LHD GR86, not LHD GT86.
- MX-5 NA and NB: 1″, up from the factory 7/8″, LHD and RHD.
Fitting
Bench bleed the master before fitting with our bench bleeding line, then check push rod clearance to the booster. Our push rod adjusting tool makes that quicker. Every HFM.Parts master cylinder carries a lifetime warranty against defects. We recommend installation by a licensed mechanic.