

Performance upgrade replacement for your OEM brake calipers, the Project Mu Pistons are machined from Billet Aluminium and have a hard anodised finish, replacing the heavy steel original equipment.
Expect to get an immediate improvement in response and braking feel with less piston binding and improved handling with a lower unsprung weight.
The kit contains:
- Billet Alloy Pistons
- Piston Seals
- Dust Boots
- Low Friction Grease
- All clips and fitting parts
| Make / Model | Spec | Front 4Pot | Rear 2Pot | |
| 200SX | S14/15 | Turbo | UGP-S401 | − |
| Skyline | R32/33/34 | GTS-T | UGP-S401 | UGP-S201 |
| Skyline | CKV36 | Type-S/SP | UGP-A401 | UGP-A201 |
| Skyline GTR | BNR32 | Not V-Spec | UGP-S401 | UGP-S201 |
| Fairlady Z | 300ZX | All | UGP-S401 | UGP-S201 |
| Z34 | S/ST | UGP-A401 | UGP-A201 | |
| RX-7 | FD3S | 16inch | UGP-S404 | − |
| 17inch | UGP-S405 | − | ||
| Impreza | GC8,GF8 | WRX STi | UGP-S406 | UGP-S204 |
| GDA | WRX NB-R | |||
| GDB | Not Brembo | |||
| Sumitomo Calipers |
| Akebono Calipers |
| Material | Billet Alloy |
| Finish | Anodised |
| Weight Change | 148g > 51g |
