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 boost 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.

Perfect with any high performance turbo setup, and ready to drop in with our Front Mount Intercooler Kits featured here

https://www.godzillaraceworks.com/turbochargers-and-accessories/pre-order-front-mount-intercooler-kits-for-1970-1983-datsun-z-cars