ARM Motorsports F30 TRANS VENT PORT PLUG

The ARM Motorsports F3X / F-Series Vent Port Plug is designed for BMW models equipped with the 6-speed manual transmission. Many aftermarket charge pipes—including the ARM N55 Charge Pipe—feature a transmission vent port intended for automatic models. On manual-transmission vehicles, this connection is unused and typically sealed with a plastic cap, which can loosen or fail under boost.

The ARM Vent Port Plug provides a durable, secure solution by replacing this unreliable cap with a CNC-machined aluminum plug designed to withstand high boost pressure and engine bay temperatures. The plug installs directly into the vent port and seals tightly using a heat-resistant O-ring to ensure an airtight fit.

A single 2.5 mm hex bolt locks the plug into place, preventing movement or leaks during spirited or high-boost driving. This upgrade is recommended for any F-Series BMW running an aftermarket charge pipe on a 6MT configuration.

Fitment:
• All BMW F-Series models equipped with 6-speed manual transmission
(Compatible with any charge pipe that includes an unused transmission vent port.)