HKS GT120R Turbocharger Package - S660 JW5
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- Description
A basic package that achieves 120ps with GT2912 and RACING SUCTION KIT STAGE2.
The HKS GT120R Turbocharger Package for the S660 JW5 achieves 120 PS by optimizing the turbine housing scroll, blade size, and shape, alongside a newly designed large actuator to manage high boost pressures.
Maintaining the factory layout for intake, exhaust, oil, and water lines ensures a straightforward installation without piping changes.
The kit includes the RACING SUCTION KIT STAGE2, which addresses limitations in turbo rotation speed, intake flow, and efficiency to maximize performance. For cooler intake temperatures, pairing with the COLD AIR INTAKE BOX KIT STAGE2 and AIR INTAKE DUCT RH is advised.
Engine reinforcement is essential for reliability, with the HKS BCD PISTON + CONROD KIT S07A STEP3 strongly recommended for durability under high boost and power.
Fuel upgrades via the FUEL UPGRADE KIT are necessary, though included if upgrading from the GT100R PACKAGE.
Note that flash tuning requires professional setup!
Use of high-quality engine oil such as SUPER OIL Premium API SP 10w-40 or SUPER TURBO RACING 5W40 is specified.
Test vehicle specifications | |
MODEL | S660 (JW5) |
ENGINE | BCD PISTON + CONROD KIT STEP3 |
ENGINE | STOPPER TYPE HEAD GASKET |
TURBO | GT2912_a |
ECU | Flash Editor |
FUEL | FUEL UPGRADE KIT |
EXHAUST | Hi-Power SPEC L / METAL CATALYZER |
INTAKE |
RACING SUCTION KIT STAGE2 COLD AIR INTAKE KIT STAGE2 AIR INTAKE DUCT RH / LH |
COOLING | Water-cooled INTERCOOLER KIT |
Output Characteristics | ||
GT100R Package |
GT120R Package+Flash Editor (POWER WRITER actual vehicle) |
|
MAX POWER kW(PS) | 74kW (100PS) | 89kW (121PS) |
MAX TORQUE N・m (kgf・m) | 138N・m (14kgf・m) | 144.7N・m (14.7kgf・m) |
Compatible OEM Numbers

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