HKS 08-14 Subaru Impreza WRX STI/ 2015+ WRX STI SSQV4 Black + Return Kit GRB/VAB

The HKS Super SQV (Sequential Blow Off Valve) uses a unique sequential valve structure and a differential pressure control system, which allows for a broad operating range from low to high boost. Its Pull-Type relief design ensures stable operation regardless of the amount of boost pressure. This Super SQV maximizes the charge-response that repeats pressure-charging and pressurized air relief by throttle on and off and supports new generations of turbocharged vehicles - ensuring the stable actuation by adopting HKS' own sequential valve structure and pull-type relief design. The body and upper part applied with semi-gloss black paint and the funnel painted with wrinkle black paint. Applying these colors giving off quality and a tranquil atmosphere. Installing this product creates unique sharp & high frequency SQV sound. The SQV IV unit is designed to be located beside the engine so the appurtenance of the engine bay is improved. Features: A special color edition for the HKS Super SQV (Sequence Blow Off Valve); Once HKS Super SQVIV is installed, its unique and sharp high frequency sound demonstrates its existence; Significantly increases its presence and improves the engine compartment appearance; To match with the appearance created by HKS Intercooler Piping Kit, the buff-polished casting pipe is included.