SKU: SKU: HKS71008-AN030V
SSQV4 (Silver)
Vehicle: inspections. Vehicle
Application
Specifications
FAIRLADY Z (Z) RZ34 The HKS SUPER SQV (Sequential Blow-Off Valve) employs a unique two-stage sequential valve structure using primary and secondary valves. It features a differential pressure control system that delicately manages pressure across a wide operating range from low to high boost. Unlike typical blow-off valves, its "relief-less operation system" suppresses relief at high boost, maximizing charge response during repeated boost and release cycles with throttle ON/OFF.
Features
Blow-off valves are placed on both banks of the VR30DDTT engine, quickly releasing unnecessary boost pressure from each turbocharger, reducing their load (when the throttle is off). Hoses between the turbocharger and intercooler are replaced with dedicated 4-ply silicone hoses for the SQV4, strengthening the hose section. All parts except the SQV4 main body are in black to highlight the SQV4. The return hose uses a dedicated molded silicone hose, fitting snugly in the engine bay.
Blow-off
Sound Volume Image (atmospheric release) *Atmospheric release is not suitable for vehicle inspections, so use it only on closed courses. Revving (Cabin) Revving (Outside) Driving (Cabin) Driving (Outside) HKS SUPER SQV IV NORMAL Right Left
Kit
Includes SSQV main body, SQV hose, mounting bracket, return hose, return pipe, other parts
Notes
Installation requires modification of genuine parts: Harne
Source: HKS Japan · Detail page