The HKS GTIII-RS is a highly responsive turbo designed for 340hp to 480hp power ranges and features a highly reliable MHI high performance CHRA.
Features
- Highly reliable MHI high performance CHRA
- Compatible with GTII 7460, 8262, GT2835, and 3037 series
- Recommended engine output range is between 340HP (250kw) and 480HP (353kw)
- Compressor housing suction diameter is 100mm, and outlet diameter is 49mm
- Turbine inlet flange is T25, and outlet flange is 4-bolt 64mm flange
- Installation size of the oil port and water cooling port is slightly different between GTII 7460, 8262, GT2835, and 3037 series and GTIII-RS. Simple modification is required.
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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.










