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OS Giken Close Gear Set
OS Giken

The OS Giken close ratio gear sets offer greatly improved strength and gear ratios designed for racing applications.

The OS Giken close ratio gear sets offer greatly improved strength and gear ratios designed for racing applications.

The normal synchromesh and helical gear design ensures operation almost as quiet and compliant as standard equipment. This ensures the OS Giken close gear set is as suited to the high performance street and circuit vehicle.

Please note these Gear parts take upto 1 year to be made up. Nengun nor does the maker keep them in stock

 

  • Replaces the first 3 or full 5 gears depending on kit
  • RB26DETT model suitable up to 800hp
  • SR20DET model suitable up to 600hp
  • RX7 FD3S 

 

Product Version Vehicle Compatibility Price Order
FC3S 3 Speed
Mazda - RX7 FC3S - R15M-D - 3 Speed
RX-7 - FC3S
USD $ 1,963.77
USD $ 2,421.05
Vehicle Compatibility
Mazda - RX-7 - FC3S
FC3S 5 Speed
Mazda - RX7 FC3S - R15M-D - 5 Speed + Input Shaft
RX-7 - FC3S
USD $ 2,407.76
USD $ 2,968.42
Vehicle Compatibility
Mazda - RX-7 - FC3S
FD3S 3 Speed
Mazda - RX7 FD3S - R15M-D - 3 Speed
RX-7 - FD3S 2-3
RX-7 - FD3S 4
RX-7 - FD3S 5
USD $ 1,963.77
USD $ 2,421.05
Vehicle Compatibility
Mazda - RX-7 - FD3S 2-3
Mazda - RX-7 - FD3S 4
Mazda - RX-7 - FD3S 5
FD3S 5 Speed
Mazda - RX7 FD3S - R15M-D - 5 Speed + Input Shaft
RX-7 - FD3S 2-3
RX-7 - FD3S 4
RX-7 - FD3S 5
USD $ 2,407.76
USD $ 2,968.42
Vehicle Compatibility
Mazda - RX-7 - FD3S 2-3
Mazda - RX-7 - FD3S 4
Mazda - RX-7 - FD3S 5
FS5R30A
Nissan - RB26DETT - 3 Speed Set - 2.695-1.703-1.236
RB26DETT
USD $ 1,963.77
USD $ 2,421.05
Vehicle Compatibility
RB26DETT
FS5R30A
Nissan - RB26DETT - 5 Speed Set - 2.695-1.703-1.236-1.0-0.826
RB26DETT
USD $ 2,774.91
USD $ 3,421.05
Vehicle Compatibility
RB26DETT
FS5W71C
Nissan - SR20DET FR - 3 Speed Set - 2.717-1.722-1.232
SR20DET
USD $ 1,434.41
USD $ 1,768.42
Vehicle Compatibility
SR20DET
FS5W71C
Nissan - SR20DET FR - 5 Speed Set - 2.596-1.765-1.250-1.0-0.833
SR20DET
USD $ 2,407.76
USD $ 2,968.42
Vehicle Compatibility
SR20DET
RB26DETT Input Shaft
Option - RB26DETT Strengthened Input Shaft
RB26DETT
USD $ 572.06
USD $ 705.26
Vehicle Compatibility
RB26DETT
SR20DET Main Shaft
Option - SR20DET Strengthened Main Shaft
SR20DET
USD $ 648.91
USD $ 800.00
Vehicle Compatibility
SR20DET
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Nengun Performance
NENGUN CO. LTD
4798-455 Imazu
Nishi-ku, Fukuoka
Japan, 819-0165

Kobutsuho No.
901080810037