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K N system
We recommend this for Diesel variants
allowing you to give your ST the power it deserves
Designed to improve power and torque across the entire RPM range
the new BW/KKK/Ecoboost Kompact valves use O-Ring sealed piston which
GFB's DV+ Diverter Valve FiestaSTMk7 K N systemGFB's DV+ diverter valve range offers a direct fit performance solution for the weak factory diverter valves used on many modern vehicles. By retaining the factory ECU control and recirculating the vented air, the DV+ is a purely performance orientated product. GFBs DV+ design solves the longevity and boost leaking issues that are common with factory diverter valves, and also changes the operation method to pilot actuation to ensure better performance