Piston Recirculating Valve for Subaru Impreza 2001 Onwards Sport including the highest quality stainless

including the highest quality stainless steel clamps

This is done to break-in all components and as a final quality control step

more aggressive intake sound and diverter valve blow-off noise

Lubricated with high temperature Mobil1 grease

which helps to minimize wheel-hop and torque steer

Piston Recirculating Valve for Subaru Impreza 2001 Onwards Sport including the highest quality stainlessWe recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner Alloy Recirculating Valve available to fit the Impreza 2001 onwards models including the 2009 GR Sti. Made from billet aluminium, this recirculating diverter valve dumps the charge air back into the air intake system keeping external noise to a minimum. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably.