Forza Componenti Model B4 Exhaust Controller

Ships In: In Stock 3-5 Days

Year Range: See Below for Compatability

Product Details

For vehicles with two vacuum control valves. The Model B4 Controller is available as either a two-way exhaust controller or a three-way exhaust controller suitable for installation in harsh environments such as the engine bay of a high-performance sports car.  Normally aspirated vehicles can use the three-way controller whereas turbo-charged cars should not as it may be detrimental to the turbocharger. Depending on the application, the controller offers up to three modes of operation:

• Normal Mode: The vehicle controls the operation of the exhaust bypass valves.  This is the stock mode.

• Always Open Mode: Forces the valves to remain open at all times, overriding the vehicle's ECU.

• Always Closed Mode: Forces the valves to remain closed at all times.  This mode should not be used with turbo-charged cars and by default will be disabled for turbo-charged vehicles.

If your vehicle is the Ferrari 488 (not the Pista) or the Ferrari 458, consider also getting the Forza Extension Cable as this provides additional installation flexibility when installing the controller module on the car. Click here for more information.

Please note that Ferrari’s equipped with GPFs may not be compatible with an exhaust controller. This includes the Ferrari 812 manufactured in 2020 or later.

You can view the vehicle compatibility matrix here. If your vehicle is not listed, contact us for compatibility.

Note: Due to supply chain differences, the controller may ship with a different style remote fob than depicted.

Ferrari's

360, F430, 458 - Extra Extension Cable recommended ,488 GTB - Extra Extension Cable recommended (two-way model), 812*, California t ... turbo-charged ... (two-way model), F12, FF, GTC4Lusso V12 uses three-way controller, GTC4Lusso T V8 uses two-way controller

Other Vehicles

• The Model B4 Controller has two connectors and is designed for cars with two vacuum control valves. The Model B4 can be used in place of the Model B4A. But one of the connectors will remain unused. Contact us for compatibility with other vehicles not listed above.

* 812 Disclaimer - Newer 812s may be equipped with Gasoline Particulate Filters (GPFs). The Forza controller may interfere with the management of the vehicle's GPF and under some circumstances, if the 812 has GPFs, a check engine light may occur when attempting to use the controller. To avoid these error conditions, an OBD CEL delete device, such as the Novitec Tectronic CEL Delete Device, may be desired. This is not issue if the vehicle does not have GPFs.