The Forza Componenti Electronic Exhaust Valve Controller Kit for Alfa Romeo Giulia Quadrifoglio and Stelvio Quadrifoglio 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 factory ECU valve behavior and customize exhaust sound output at any time, without permanent modifications.

Engineered with a dedicated circuit board, the controller manages the negative side of the exhaust valve vacuum solenoids, enabling precise control of valve position. With this system installed, you can instantly open the exhaust bypass valves for a louder, more aggressive exhaust note or return to factory operation whenever desired.

The controller provides enhanced flexibility for both street and track use. Whether you want maximum exhaust volume during spirited driving or reduced noise for compliance at track events with strict sound regulations, this system delivers reliable and consistent valve control.

Built for durability and long-term use in demanding engine bay environments, the controller enclosure is constructed from extruded aluminum and houses high-temperature-resistant internal electronics. All wiring uses automotive-grade TPE-insulated cables rated for high heat and harsh conditions, ensuring dependable operation in extreme environments.

Installation is fully plug-and-play with no wiring modifications required. The system connects directly to the existing factory exhaust valve vacuum solenoid connectors and can be removed at any time without leaving any 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 at all times
• Always Closed Mode: Forces exhaust valves to remain fully closed for maximum quiet operation

The Always Closed mode is especially useful for track environments or locations with strict noise restrictions, ensuring compliance without ECU intervention.

Features and Benefits

• Full manual control of exhaust bypass valves
• Compatible with Alfa Romeo Giulia Quadrifoglio and Stelvio Quadrifoglio
• Three selectable operating modes: Normal, Always Open, Always Closed
• Plug-and-play installation with no wiring modifications required
• 100% reversible system
• Remote control transmitter included
• Optional manual on/off switch configuration support
• Fail-safe operation returns control to factory ECU when ignition is off
• No Check Engine Light (CEL) or diagnostic fault codes
• High-temperature extruded aluminum control module housing
• Automotive-grade weatherproof connectors
• TPE-insulated wiring rated to 105°C for engine bay durability
• High-gain external antenna for improved remote range
• FCC and CE approved components
• Compatible with HomeLink systems (version 5 and newer)
• Includes installation accessories and mounting hardware
• 12-month manufacturer warranty against defects

Fitment

Vehicle Compatibility:

• Alfa Romeo Giulia Quadrifoglio
• Alfa Romeo Stelvio Quadrifoglio

Fitment Notes:

• Fits all Quadrifoglio models within listed platforms
• Designed for factory vacuum-actuated exhaust bypass valve systems
• Installation requires unplugging factory valve solenoids and connecting included harness
• Fully reversible installation with no permanent modifications
• Remote operates via 433MHz frequency (HomeLink compatibility varies by vehicle version)