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The HKS 71008-AT021 Super SQV4 kit installs HKS's SQV4 blow-off valve on the 2020-2024 Toyota GR Supra (A90/A91) B58 engine, giving the turbo a stronger, more consistent recirculating valve than the factory unit in a compact 440 x 260 x 260 mm package.
Note: Representative image shown for reference only. Actual product appearance and included components may vary by vehicle application. Please review the product description and fitment details before ordering.
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2024 | Toyota | GR Supra | A90/A91 |
| Detail | Value |
|---|---|
| Box length | 440 mm |
| Box width | 260 mm |
| Box height | 260 mm |
| Box weight | 2.65 kg |
| Valve design | Pull-type relief design with sequential valve structure and differential pressure control system |
| Discharge configurations | Open to atmosphere. Recirculated back with the stock air cleaner. Recirculated back with the HKS Carbon Racing Suction |
| Package Dimensions/Weight | 440 × 260 × 260 mm, 2.65 kg |
| Emissions/CARB Status | In Japan, installation with the blow-off discharge air vented to atmosphere does not comply with the applicable Road Vehicles Act ordinance. Recirculation is required for general public-road use. |
HKS is a Japanese performance engineering company founded in 1973, known for turbocharger systems, the Hipermax coilover line, SSQV blow-off valves, and precision-engineered engine, suspension, and exhaust components developed and tested on JDM and global performance platforms.
What vehicles does this blow off valve kit fit?
Check the fitment table above for the exact year, make, model, and chassis this part covers.
Is this a genuine HKS part?
Yes. This is a genuine HKS part sourced through authorized HKS distribution channels, matching the manufacturer part number exactly.
What is included in the box?
The What's Included section above lists the exact contents and quantities that ship with this part.
Does this part require professional installation?
HKS documentation for this part notes installation considerations. See the Installation Instructions section below. Some parts require professional installation, fabrication, or specialized tools.
What is the HKS warranty on this part?
HKS provides a one-year warranty to the original purchaser of HKS products against defects in materials and workmanship. Purchasing the product through an unauthorized seller may void your warranty.
Is this part covered for emissions/CARB compliance?
In Japan, installation with the blow-off discharge air vented to atmosphere does not comply with the applicable Road Vehicles Act ordinance. Recirculation is required for general public-road use.
Can I return this part if it doesn't fit my vehicle?
Confirm fitment against the table above before ordering. Standard return policy applies to unused, unmodified parts in original packaging.
Where is this part manufactured?
HKS parts are engineered and manufactured under HKS's Japan-based quality standards for performance automotive applications.
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