Forza Exhaust Valve Controller for BMW with Compatible Vacuum Valves

This Forza reference is for a BMW installation with the matching single vacuum-controlled exhaust bypass. It must be selected from the original valve hardware and connector. A factory-valved exhaust by itself does not establish compatibility, particularly on cars using electric valve actuators.

Before you order

Match your BMW's actual vacuum-actuated exhaust valves, connectors and controller application before ordering. Original valved exhausts do not all use the same actuator type.

Technical Details

• Fabspeed catalog reference: FC-BMW-B4A.
• Self-contained controller with remote operation and provision for a compatible manual switch.
• Weather-resistant connectors and high-temperature connection cables.
• Includes the controller, remote control, application connection cables, mounting accessories and instructions.
• Installation is reversible when performed using the supplied connections.
• Match the original valve actuation, solenoid count, polarity and plugs before fitting.
• Exact transmitter quantity and any required adapter plugs should be confirmed for the supplied kit.
• Powered through the matching original vacuum-solenoid connection; no wire cutting or splicing is specified.
• Supports factory-controlled operation and an open-valve setting. Mode availability depends on the exact controller and vehicle.
• Turbocharged BMW installations must not use an always-closed mode.
• The broad all-BMW wording is not a substitute for an exact controller and harness match.

Use restrictions

Use only the operating modes permitted by the vehicle-specific Forza instructions. Forza excludes an always-closed mode on turbocharged applications. A valve controller does not establish emissions or local noise compliance.

For help matching this component, contact PMB Performance with your VIN and photos or references for the component being replaced. Our team draws on over 20 years of parts and fitment experience.

Fitment & Compatibility

Use the application details below together with the original component and any existing modifications.