Go Fast Bits Universal 25mm Inlet, 25mm Outlet Respons TMS Blow-Off Valve (Bosch Replacement)

On the surface, it may look like just another dual-port blow-off valve, but the Respons is actually much more than that. Featuring GFB’s patented venting bias adjustment system, the Respons allows you to precisely control how much air vents from each of the two outlets.Why is this so important? Two key reasons:Hold on, it gets better. The Respons isn’t just a noise-maker. It also;Offers better throttle responseFaster boost recovery on gearshiftUnlimited boost-holding!For example, using GFB’s TMS (Turbo Management System) principle, tests show that the Respons can return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears (more information below)How GFB’s Patented Venting Bias Adjustment WorksTwisting the adjusting ring opens up the atmo port, whilst the recirc port is simultaneously closed.This results in possible venting ratios ranging from 100% recirc, right through to 100% atmosphere and anywhere in between.Fitments:VW Passat B5-B5.5 1.8t 96-0