Go Fast Bits DV+ When you want no noise, no nonsense just performance!
THE SIMPLE AND ESSENTIAL MOD FOR 30 PERCENT QUICKER BOOST. By retaining the factory ECU control and recirculating?the vented air, the DV plus T9360 is a purely performance oriented?product that offers the following benefits: Sharper throttle response; Faster boost recovery on gearshift; Solves boost leaking issues; Built to last. UTILISING PROVEN TMS TECHNOLOGY TO ENSURE DEPENDABLE BOOST HOLDING AND OPTIMUM THROTTLE RESPONSE.; The T9360 is a fully recirculating direct factory replacement for the pneumatic diaphragm type BPV (Bypass Valve) used on Ford Focus RS - when you want the performance WITHOUT the noise!; The factory BPV (bypass valve) has a couple of key shortcomings in construction and operation. First of all, tuned engines running high boost also produce a lot of heat in the charge air. Because the BPV is situated right on the compressor, it is subjected to the hottest part of the intake charge, and the heat from the compressor cover itself. This can cause the factory diaphragm to rupture, and if that happens and goes undetected for a while, it can cause damage to the turbo, as the ECU will try to compensate for the lost boost pressure by increasing turbo speed. Second, the operation of the factory BPV is not aimed at throttle response. Because of the soft spring and the solenoid valve that is in-line with the vacuum hose, it can only operate in two states ? fully open, or fully shut.; As for performance, because the DV plus features a carefully selected spring rate AND spring pre-load adjustment, it can operate progressively to help sharpen throttle response. This is the basis of GFB's TMS principle, which has been shown to reduce the time to peak boost on gearshift by 30 percent. This benefit is also particularly noticeable in situations where you are modulating the throttle to balance the car in a corner.
GFB Diverter Valve DV+ 2017+ Ford Focus RS