The HKS GT2912_a SPORTS TURBINE KIT for S660 JW5 features a new turbocharger designed for 120PS in the S660.
Features
- Please purchase this product for vehicles that have the COLD AIR INTAKE FULL KIT STAGE2 (70026-AH012) already installed, or for overhaul or repair purposes.
- To achieve 120 PS, the turbine housing scroll shape, blade size, and blade shape have been optimized,
- and a new large actuator has been designed to handle high boost pressure.
- Like the GT100R (GT III-KX), the intake and exhaust, oil lines, and water lines follow the factory layout, so installation is possible without any piping modifications.
Kit Includes
- GT2912_a main unit
- Bolts
- Gaskets
- Dedicated heat shield
Notes
- This product cannot be used in conjunction with the genuine suction pipe or RACING SUCTION KIT (70020-AH108).
- The GT2912_a has a larger actuator to handle high boost pressure, which interferes with the original suction pipe.
- To achieve 120PS, improved intake efficiency is essential, so the installation of the RACING SUCTION KIT STAGE2 (70020-AH112) is required. Please purchase the GT120R PACKAGE, which includes the RACING SUCTION KIT STAGE2.
- Since the fuel system needs to be strengthened, the installation of the FUEL UPGRADE KIT (14007-AH004) is required.
- To ensure stable performance of this product, the internal structure of the engine must be reinforced. To ensure durability, especially in the high-boost and high-power ranges, HKS strongly recommend using the HKS BCD PISTON + CONROD KIT S07A STEP3 φ64 (21004-AH002).
- Flash Editor setting data is not included. Setting is required at a power writer shop.
We ship to the United States and 150 other countries.
Japan Post EMS & ePacket, FedEx, DHL and more.
HKS was founded in October 1973 by Hiroyuki Hasegawa, a former Yamaha engineer, and Goichi Kitagawa, with start-up capital from Sigma Automotive; the name comes from Hasegawa, Kitagawa and Sigma. It began in a small shed at the foot of Mount Fuji, in Fujinomiya, Shizuoka, and is still based there.
In 1974 HKS built one of the first bolt-on turbo kits, for the Nissan L20 engine in the Skyline, raising output from 115 to 160 PS. Turbocharging made its name; today it also makes exhausts, springs, shocks and coilover suspension, and it marked its 50th anniversary in 2023.
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About NENGUN
Since the year 2000, NENGUN has supplied over 500,000 parts direct from Fukuoka, Japan to 170 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.












