Twin Piston Blow Off Valve with Side Vacuum Nipple Finish:Alloy 8T engines as fitted in

8T engines as fitted in the MK1 Audi TT

Choice of spring pressures to suit your car

The actuator is supplied with no replacement bracket

is not capable of compensating for the loss of metered air through a vent-to-atmosphere valve such as this

Twin Piston Blow Off Valve with Side Vacuum Nipple Finish:Alloy 8T engines as fitted inWe recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner This version of our popular FMDV004 valve has the vacuum connection on the side of the valve which is ideal for those applications where space is restricted. Made from billet aluminium, this atmospheric diverter valve dumps the charge air to atmosphere creating the "Whoosh" sound when the throttle is lifted. This increases both quicker throttle response and higher