This is the Go Fast Bits VTA Blow Off Valve, it produces the loudest sound of any Go Fast Bits BOV. It is a direct replacement for the factory-fitted solenoid-type diverter valve on your 13 - 18 Ford Focus ST. It fits Borg Warner EFR type turbos. Add a great blow off sound to your ST now!

VTA BOVs vent to atmosphere to make the signature turbo blow-off sound, where the DV+ recirculates the air to keep it quiet., Each valve in the VTA range is designed specifically for the applications we list them for, ensuring the best fit and performance. Most of the VTA range are designed for use on cars with solenoid type factory diverter valves, and in those cases the VTA kit will retain the solenoid and ECU control. , Like the DV+ though, it replaces the weak factory valve internals to ensure strength and reliability, especially in high boost applications. Other versions of the VTA are designed for use on cars that do not have any kind of factory-fitted diverter valve. , , Vehicle manufacturers have deleted the troublesome solenoid type diverter valve from some of the newer models, but this leads to turbo compressor surge which can be taxing on the turbo in the long run. , The VTA valves for these cars are designed to re-introduce the function of a diverter/blow-off valve to help protect the turbo in the long term and also provide a blow-off sound.

This item is NOT CARB legal and it is for novelty off road use only! This item will not sell or ship to any CARB states, like California.