Perrin [02-07 WRX, 04-21 STI] Recirculating Blow off Valve Red Off-Road Lights the Mono-Air system integrates seamlessly

the Mono-Air system integrates seamlessly with most aftermarket air management systems

Relocates alternator to A/C position for increased clearance

Whether you’re cruising at factory height or airing out for a clean

Box Contents

Spring rates: Front: 10 kg/mm / Rear: 6 kg/mm

Perrin [02-07 WRX, 04-21 STI] Recirculating Blow off Valve Red Off-Road Lights the Mono-Air system integrates seamlesslyPERRIN Recirculating Blow Off Valve The PERRIN Recirculating Blow Off Valve (BOV) is designed to provide faster and more reliable boost pressure relief for modified Subaru WRX and STI models. If youve increased your vehicles boost, horsepower, or overall performance, this upgraded BOV responds quicker and more precisely than the OEM unit, protecting your turbo and improving throttle response. Crafted from CNC machined 6061 billet aluminum, the BOV