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HKS original 3-chamber structure ensures the stable operation of blow-off valve regardless of the amount of pressure. Large 51mm valve performs great with high power and large displacement engines. Adjustable pre-load allows a wide range of application. 3-chamber System Typical blow off valves require spring load settings for each vehicle specification. If the spring load setting is too low, the boost pressure may be relieved under high boost, and the desired boost setting may not be reached. If the spring load setting is too strong, the valve may not open at low boost. HKS RACING SQV utilizes a reliefless type; therefore, it delivers stable operation at all boost levels. Durability tests of over 1 million operations minimizes the chances of valve stick and achieves high durability.

Screw size: M33 x 3.5. For engines F6A(DOHC), F6B, K6A, M series, J20, H27, K12B (non dual jet engine).

For 4B11 engine with metal head cover turbo model. Buff Finish model.

Note: This kit does not include AFR. Correcting fuel device is required. HKS RACING SUCTION features: - Improving the suction efficiency by changing the genuine flexible rubber hose to aluminum piping. In HKS flow bench test, the suction resistance has been reduced compared to stock intake system. - The exclusive heat insulator suppresses the influence of heat in the engine room. - It is possible to correct the deviation of the air flow meter output generated by the air cleaner itself by coupler on with the kit with AFR (Air Fuel ratio Regulator). (A kit without AFR requires separate setting with a fuel correction device etc.) - The sporty intake sound unique to bare type air cleaners is one of the features. * By using together with "cold air intake box", which will be released soon, exhibits superior performance.

HKS RACING SUCTION features: - Improving the suction efficiency by changing the genuine flexible rubber hose to aluminum piping. In HKS flow bench test, the suction resistance has been reduced compared to stock intake system. - The exclusive heat insulator suppresses the influence of heat in the engine room. - It is possible to correct the deviation of the air flow meter output generated by the air cleaner itself by coupler on with the kit with AFR (Air Fuel ratio Regulator). (A kit without AFR requires separate setting with a fuel correction device etc.) - The sporty intake sound unique to bare type air cleaners is one of the features. * By using together with "cold air intake box", which will be released soon, exhibits superior performance.

Features: Aluminum Chamber Pipe from outlets of each turbine to junction portion. Stock layout enables various kind of tuning. * Junction portion of chamber pipe is designed for smooth flow of intake air. That reduces intake resistance and increases performance of engine. Mirror buffing finish appeals in engine compartment. * It fits to stock air cleaner box (Modification is required), Super Power Flow, Racing Suction. It works from boost up to Sports Turbine KIT.

Features: Aluminum Chamber Pipe from outlets of each turbine to junction portion. Stock layout enables various kind of tuning. * Junction portion of chamber pipe is designed for smooth flow of intake air. That reduces intake resistance and increases performance of engine. Mirror buffing finish appeals in engine compartment. * It fits to stock air cleaner box (Modification is required), Super Power Flow, Racing Suction. It works from boost up to Sports Turbine KIT.

Universal fit. A set of 16pc. Choose M12 x 1.25 or M12 x 1.5 Product specifications: Size: Full length of nut 48mm (Effective screw length approx. 30mm / Maximum diameter approx. 22mm) Nut specifications: 17HEX, 60° taper seat, through type M12 x 1.25 (Nissan / Subaru / Suzuki) M12 x 1.5 (Toyota, Honda, Mitsubishi, Mazda, Daihatsu) * Some OEM models may differ from manufacturer screw sizes. (Example: Toyota 86 ZN6.. M12 x 1.25 because Subaru is manufacturer) Material: Chrome molybdenum steel (SCM435) Color: Black (cationic electrodeposition coating) CUSCO logo (white letters) Remarks - - Some OEM models may differ from manufacturer screw sizes. Be sure to confirm the screw size of the hub bolt of the vehicle to be installed. (Example: Toyota 86 ZN6 ... M12 x 1.25 for Subaru manufacturing vehicles) - This product has a 60° taper seat on the contact surface with the wheel. Never use it on genuine wheels that use a flat or spherical seat. - Manage the torque with the specified tightening torque for each vehicle, and periodically check for looseness. CUSCO RACING WHEEL NUT SET Features: - Adopts highly reliable chromium molybdenum steel (SCM435) because it has a coefficient of thermal expansion close to that of bolts and does not loosen even when the temperature is high during hard driving. - Designed with a penetrating long type (total length 48mm) that takes into account the balance between weight and durability in motor sports and ease of handling. - Lineup of two screw sizes: M12 x P1.25 and M12 x P1.5.

Universal fit. A set of 20pc. Choose M12 x 1.25 (00B 738 12520B) or M12 x 1.5 (00B 738 1520B) Product specifications: Size: Full length of nut 48mm (Effective screw length approx. 30mm / Maximum diameter approx. 22mm) Nut specifications: 17HEX, 60° taper seat, through type M12 x 1.25 (Nissan / Subaru / Suzuki) M12 x 1.5 (Toyota, Honda, Mitsubishi, Mazda, Daihatsu) * Some OEM models may differ from manufacturer screw sizes. (Example: Toyota 86 ZN6.. M12 x 1.25 because Subaru is manufacturer) Material: Chrome molybdenum steel (SCM435) Color: Black (cationic electrodeposition coating) CUSCO logo (white letters) Remarks - - Some OEM models may differ from manufacturer screw sizes. Be sure to confirm the screw size of the hub bolt of the vehicle to be installed. (Example: Toyota 86 ZN6 ... M12 x 1.25 for Subaru manufacturing vehicles) - This product has a 60° taper seat on the contact surface with the wheel. Never use it on genuine wheels that use a flat or spherical seat. - Manage the torque with the specified tightening torque for each vehicle, and periodically check for looseness. CUSCO RACING WHEEL NUT SET Features: - Adopts highly reliable chromium molybdenum steel (SCM435) because it has a coefficient of thermal expansion close to that of bolts and does not loosen even when the temperature is high during hard driving. - Designed with a penetrating long type (total length 48mm) that takes into account the balance between weight and durability in motor sports and ease of handling. - Lineup of two screw sizes: M12 x P1.25 and M12 x P1.5.