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Gear

OS Giken Close Ratio Gear Kits are developed for those seeking improved drive train reliability and faster lap times. Gear ratios are carefully calculated for each vehicle application for the sole intention to maximize your engine's potential. Each OS gear component has been carefully designed and created using high-quality forged materials resulting in extra strength and durability.
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[NS201-GQ] Reinforced Center Plate for Nissan BNR32/33

Reinforced Center Plate for Nissan BNR32/33

$ 1,883.39
[NS052-GR] Close Ratio Gear Kit for Nissan S14 Silvia

Close Ratio Gear Kit for Nissan S14 Silvia

$ 8,357.04
[NS201-GM] Close Ratio Gear Kit for Nissan BNR32/33 3-Speed w/ Reinforced Input Shaft

Close Ratio Gear Kit for Nissan BNR32/33 3-Speed w/ Reinforced Input Shaft

$ 6,073.74
[NS201-GA] Close Ratio Gear Kit for Nissan BNR32/33

Close Ratio Gear Kit for Nissan BNR32/33

$ 8,282.86
[MZ121-GA] Close Ratio Gear Kit for Mazda FD3S RX-7

Close Ratio Gear Kit for Mazda FD3S RX-7

$ 7,194.96
[HA061-GC] Close Ratio Gear Kit for Acura Integra Type R 5spd

Close Ratio Gear Kit for Acura Integra Type R 5spd

$ 5,926.46
[NS052-GS] Close Ratio Gear Kit for Nissan S14 Silvia 5-Speed

Close Ratio Gear Kit for Nissan S14 Silvia 5-Speed

$ 7,103.59
[NS201-GN] Close Ratio Gear Kit for Nissan BNR32/33 3-Speed w/5th Gear Reinforced Input Shaft

Close Ratio Gear Kit for Nissan BNR32/33 3-Speed w/5th Gear Reinforced Input Shaft

$ 7,040.16
[NS201-GL] Close Ratio Gear Kit for Nissan BNR32/33 3-Speed w/5th Gear

Close Ratio Gear Kit for Nissan BNR32/33 3-Speed w/5th Gear

$ 6,073.74
[MZ111-GA] Close Ratio Gear Kit for Mazda FC3S RX-7

Close Ratio Gear Kit for Mazda FC3S RX-7

$ 7,194.96
[HA061-GB] Close Ratio Gear Kit for Acura Integra Type R 4spd

Close Ratio Gear Kit for Acura Integra Type R 4spd

$ 4,392.44
[HA061-GA] Close Ratio Gear Kit for Acura Integra Type R

Close Ratio Gear Kit for Acura Integra Type R

$ 5,926.46
[HA031-GC] Close Ratio Gear Kit for Honda Civic EK4 Type R 5spd

Close Ratio Gear Kit for Honda Civic EK4 Type R 5spd

$ 5,926.46
[HA031-GB] Close Ratio Gear Kit for Honda Civic EK4 Type R 4spd

Close Ratio Gear Kit for Honda Civic EK4 Type R 4spd

$ 4,392.44
[HA031-GA] Close Ratio Gear Kit for Honda Civic EK4 Type R

Close Ratio Gear Kit for Honda Civic EK4 Type R

$ 6,972.44