HKS SSQV4 (Silver) Blow off Valve - Subaru WRX VAG 15 - 21 A90 erratic lean AFR spikes

erratic lean AFR spikes

HOLDEN — COMMODORE — VS — 1995 - 1997 — SEDAN — F — INSERT - CUT & WELD OF OE STRUT REQUIRED

Viscosity: 75W-140

TECHNICAL FEATURES

HKS SSQV4 (Silver) Blow off Valve - Subaru WRX VAG 15 - 21 A90 erratic lean AFR spikesThe HKS Super SQV4 (Super Sequential Blow Off Valve) for the Subaru WRX VA uses a dual stage sequential pull type valve to vent excess boost pressure the moment the throttle lifts, preventing compressor surge across the full boost range from low to high. A differential pressure control system governs opening precisely without the spring load compromise of push type valves, and the triple fin funnel produces the signature HKS induction sound. Features