GFB Diverter Valve DV+ Dodge Dart/ BMW F30 335i / BMW F20 / BMW F21 M135i / Fiat 500 Abarth

The Go Fast Bits (GFB) DV+ T9356 is a direct-fit performance diverter valve upgrade designed for select Dodge, BMW, and Fiat Abarth applications. It addresses common weaknesses in factory diverter valves by replacing fragile plastic components with durable metal parts, specifically an anodized billet aluminum housing and a precision-machined brass piston. Unlike full replacement systems that can introduce lag and complexity, the DV+ retains the factory electronic solenoid for seamless ECU integration and fast response. GFB's exclusive "pilot-actuated" valve mechanism enhances throttle response and valve actuation speed, allowing it to reliably hold higher boost pressures without causing compressor surge or turbo flutter. This progressive valve opening system also improves upon the factory's simple open/shut operation, resulting in finer control and better throttle modulation. The DV+ is designed for increased reliability and strength, particularly beneficial for chipped or tuned engines that operate at higher boost and temperatures, which can cause factory diaphragm valves to rupture or plastic piston valves to leak.