HKS Supercharger New Release JDM 2026: What You Need to Know

What's New in the 2026 HKS Release

HKS just announced their biggest supercharger update in five years with the GT-Supercharger V4 series. The standout feature is the new twin-screw rotor design that improves volumetric efficiency by 12% over the previous generation while reducing operating temperatures by 15°C under load.

The new intercooler core is 30% larger than the V3 series, using a denser fin design that HKS developed for their D1GP competition cars. They've also integrated their proprietary bypass valve system directly into the supercharger housing, eliminating the need for external plumbing that could leak or fail.

Build quality gets an upgrade too. The housing is now CNC-machined from 6061-T6 aluminum instead of cast, and all internal components use upgraded bearings rated for 200,000+ miles of street use.

Technical Specifications

The GT-Supercharger V4 comes in three displacement variants:

• V4-1320: 1.32L displacement, 6-8 psi boost, 50-80hp gain
• V4-1600: 1.6L displacement, 8-10 psi boost, 80-120hp gain
• V4-2000: 2.0L displacement, 10-12 psi boost, 120-160hp gain

All variants use the same twin-screw rotor configuration with a 60-degree helix angle optimized for street driving. Maximum RPM is rated at 18,000 with the integrated bypass opening at 14 psi to prevent overboosting.

The integrated intercooler measures 600mm x 300mm x 76mm core size with end tanks designed for -10AN fittings. HKS rates the heat exchanger for up to 400hp applications with proper airflow.

Vehicle Compatibility

Launch compatibility covers the most popular JDM platforms:

Toyota GR86/Subaru BRZ (ZD8/ZN8): Direct bolt-on kit includes everything needed for installation including ECU tune, fuel pump upgrade, and all hardware. The V4-1600 is the recommended variant for these platforms.

Toyota Supra A90/A91: Requires removal of the factory turbocharger system. HKS includes adapter plates and custom exhaust manifold. Only the V4-2000 variant is available for this application due to the B58's displacement.

Nissan Z (RZ34): Compatible with both 3.0L VR30 engines. Installation requires custom ECU tuning and is not plug-and-play like the Toyota applications.

Additional vehicle compatibility will be announced throughout 2026, with Honda S2000, Mazda Miata, and select Subaru WRX applications in development.

Pricing and Availability

Japanese retail pricing starts at ¥380,000 ($2,850 USD) for the base V4-1320 kit. The mid-range V4-1600 runs ¥450,000 ($3,375 USD), while the top-spec V4-2000 commands ¥580,000 ($4,350 USD).

JDM release began May 1st, 2026, with North American availability expected Q3 2026. European markets follow in Q4 2026.

Unlike previous HKS releases, these kits include everything needed for installation: supercharger assembly, intercooler, all piping, ECU tune, fuel system upgrades, and hardware. No additional purchases required for a complete installation.

Installation Considerations

Installation complexity varies by platform. The GR86/BRZ kits are designed for experienced home mechanics with basic tools and a lift. Installation time runs 8-12 hours following HKS's detailed manual.

Supra A90 installation requires turbocharger removal and extensive ECU work, making it a shop-recommended installation. Budget 16-20 hours of labor plus custom tuning time.

All kits require 91+ octane fuel and HKS recommends upgraded engine internals for the V4-2000 applications. The smaller V4-1320 and V4-1600 variants work safely with stock internals when properly tuned.

Frequently Asked Questions

When will HKS supercharger new release JDM 2026 be available in North America?

North American availability is expected Q3 2026, approximately 4-6 months after the JDM release. Trimotive Performance will carry the full lineup once North American distribution begins.

What's the power gain from the new HKS GT-Supercharger V4?

Power gains range from 50-80hp for the V4-1320 up to 120-160hp for the V4-2000, depending on platform and supporting modifications. These figures assume proper tuning and 91+ octane fuel.

Do I need engine internals for the new HKS supercharger?

The V4-1320 and V4-1600 work safely with stock internals when properly tuned. The V4-2000 variant requires upgraded pistons and connecting rods for reliability at full boost levels.

How much does the HKS GT-Supercharger V4 cost?

Pricing starts at $2,850 USD for the V4-1320 and goes up to $4,350 USD for the V4-2000. All kits include complete installation hardware and ECU tuning.

Parts & Products

Trimotive Performance will stock the complete HKS GT-Supercharger V4 lineup once North American distribution begins. We also carry supporting modifications including fuel system upgrades, performance engine internals, and ECU tuning solutions to maximize your supercharger setup. Our technical team has hands-on experience with HKS forced induction systems and can help you choose the right combination for your build goals.