OVERVIEW
This BMS connection kit replaces the B58 oil filler cap with a dual-vent cap so a catch can can pull from an additional breather point, improving crankcase ventilation on the B58 BMW and Toyota Supra.
SPECS
- Dual-vent oil filler cap and connection hardware
- Adds a breather source for a BMS catch-can setup
- Fits B58 BMW and Toyota Supra
PARTS INCLUDED
- Dual-vent filler cap, hoses and fittings
TECH RESOURCES
Additional Parts Required
- Designed to pair with a BMS Oil Catch Can.
Installation
- Bolt-on; see the BMS product page for routing.
Notes
- BMS does not publish part numbers.
VEHICLE APPLICATIONS
| Make | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| BMW | (B58) / Toyota GR Supra | F/G-chassis / A90 | B58 3.0L Turbo I6 | 2016+ |


