GFB DV+ diverter valve for BMW 335i F30

GFB DV+ for Dodge Dart, BMW and Fiat Abarth

GFB DV+ is a direct replacement for the factory diverter valve used in numerous European vehicles. The supplier lists it for Dodge Dart, BMW and Fiat Abarth applications.

• Retains the factory electronic coil for seamless integration.
• Replaces the valve’s plastic parts with metal components, improving reliability and durability in tuned engines.
• Direct-fit installation with GFB TMS system operation.
• Exclusive pilot-controlled mechanism for a fast response at high boost pressure.

The factory valve’s electronic solenoid itself is very effective, as the control unit opens it faster than a pneumatic valve. The weaker part is the valve mechanism. GFB DV+ therefore replaces only the valve components with an anodised machined aluminium body and a brass piston manufactured to precise tolerances.

The result is sharper throttle response, very fast valve operation and the ability to hold high boost pressure.

Traditional replacement systems from other manufacturers often replace the entire system with a pneumatic valve. This requires long vacuum hoses, additional parts to connect to the intake manifold vacuum, and another solenoid valve or resistor to connect to the original wiring. Due to the additional components, this solution is slower, less responsive, more expensive and more difficult to install.

GFB DV+ retains the factory solenoid, making installation simpler and response faster. The system does not cause compressor surge or the characteristic turbo flutter when the throttle closes, and does not require other springs or frequent rebuilding.

More performance and greater reliability

Many newer European cars use electronically controlled diverter valves operated by the control unit. This design enables a very fast response and opens the valve only when required.

Two issues are most common with factory valves:

• Diaphragm valves: the diaphragm can rupture, especially when the engine is modified with software due to increased boost pressure and temperature.
• Piston valves: due to their design, they may seal less effectively than normally expected and may not always close completely after shifting at high boost pressure.

In both designs, the electronic solenoid is directly connected to the valve mechanism. At high boost pressure, the solenoid and return spring are therefore not always capable enough to open and close the valve reliably.

DV+ solves the problem by retaining the original solenoid while replacing the valve parts with durable metal components. The pilot-controlled system uses the solenoid to regulate the air pressure that opens and closes the piston. The valve therefore responds reliably even at high boost pressure without exceeding the solenoid’s capacity.

The valve opens progressively according to the boost pressure and only as much as necessary. The factory valve generally only opens or closes, while DV+ also allows partial opening at lower boost pressure, contributing to improved throttle response.

Product specification

Model: GFB DV+ T9356

Suitable for: Abarth 500 I (312), BMW 1 II (F20/F21), BMW 3 VI (F30/F31/F34/F80).

Compatible vehicles (manufacturer data)

Before ordering, check that the product matches your vehicle (model, year and engine). If in doubt, write to us — we will check for you.