HKS Super SQV4 Aftermarket Blow-Off Valve | Sequential Pull-Type Universal Turbo BOV

Experience precision boost control and signature turbo sound with the HKS Super SQV4 Aftermarket Blow-Off Valve (71008-AK001). Engineered with a unique dual-valve sequential system, this aftermarket BOV delivers optimal pressure relief from low to high boost conditions. Its pull-type relief valve design ensures consistent performance regardless of boost pressure, making it ideal for a wide range of turbocharged setups. The triple fin design at the center of the funnel produces an aggressive high-frequency sound, while the high-quality aluminum die-cast construction ensures durability and adds a polished look to your engine bay.

Perfect for enthusiasts looking to upgrade from the quiet factory recirculation valve, the HKS Super SQV4 offers both form and function in a refined aftermarket package. This BOV not only improves throttle response and turbo efficiency, but also transforms the driving experience with its bold acoustics and standout appearance. Whether you’re aiming for performance, aesthetics, or both, this aftermarket blow-off valve is a must-have for any serious turbo build.