The Fabspeed Motorsport Forza Electronic Exhaust Valve Controller Kit for BMW is a complete plug-and-play solution designed to give drivers full manual control over factory vacuum-actuated exhaust bypass valves. This system allows you to override OEM ECU valve behavior and instantly adjust exhaust sound levels without permanent modifications.

The controller utilizes an integrated circuit board that manages the negative side of the exhaust valve vacuum solenoids, enabling precise control over valve position at all times. With this system installed, drivers can open or close exhaust valves regardless of engine speed, driving mode, or factory programming.

Engineered for durability and performance environments, the controller is housed in a robust extruded aluminum enclosure designed to withstand high engine bay temperatures and demanding driving conditions. All internal electronics are integrated into a high-reliability printed circuit board for long-term stability and performance.

Installation is fully plug-and-play, requiring no wiring modifications. The system connects directly to the factory exhaust valve vacuum solenoid connectors using included harnesses, making installation straightforward and fully reversible.

Control is provided via a remote transmitter or optional interior switch, allowing instant adjustment of exhaust valve operation. The system is completely reversible and can be removed at any time without leaving permanent changes to the vehicle.

Operating Modes

• Normal Mode: Exhaust valves operate under factory ECU control
• Always Open Mode: Forces exhaust valves to remain fully open for maximum exhaust sound
• Always Closed Mode: Forces exhaust valves to remain fully closed for quiet operation or track compliance

The Always Closed mode is especially useful for track environments or locations with strict noise regulations where reduced exhaust volume is required.

Features and Benefits

• Full manual control of factory exhaust bypass valves
• Compatible with BMW models equipped with vacuum-actuated exhaust valve systems
• Three operating modes: Normal, Always Open, Always Closed
• Plug-and-play installation with no wiring modifications required
• Fully reversible system with no permanent vehicle changes
• Remote control transmitter included
• Optional manual on/off switch configuration support
• Fail-safe design reverts to factory ECU control when ignition is off
• No Check Engine Light (CEL) or diagnostic fault codes
• Durable extruded aluminum control module housing
• Weatherproof automotive-grade connectors
• High-temperature resistant wiring rated for engine bay use
• High-gain external antenna for improved remote range
• FCC and CE approved components
• Compatible with HomeLink systems (version 5 and newer)
• Includes installation hardware and mounting accessories
• 12-month manufacturer warranty against defects

Fitment

Vehicle Compatibility:

• BMW models with factory vacuum-actuated exhaust bypass valve systems (varies by model)

Fitment Notes:

• Designed for BMW applications using OEM-style exhaust valve solenoids
• Plug-and-play installation using included harnesses
• No ECU tuning or programming required
• Fully reversible installation with no permanent modifications
• Remote operates on 433MHz frequency (HomeLink compatibility depends on vehicle version)