OS GIKEN Close Gear Kit 5-Speed + Main Shaft - FD3S

259989 JPY

OS GIKEN SKU: 103713 PN: 103713_2399881

This kit is developed to replace transmission internals providing better strength and refined ratios for improved sports performance. Is produced for those seeking improved drive train performance and faster lap times. OS’s gears ratios are carefully calculated for each application for the sole intention to improve your transmission's performance, and thus allow your engine to properly apply power when it counts.
Get this and all your JDM at RHDJapan!!

Brand: OS Giken
Product: Close Gear Kit 5-Speed + Main Shaft - FD3S
Part Number: 103713_2399881

SPECIFICATIONS:
Gears Ratio:
- 1st: 2.578 (3.483 OEM)
- 2nd: 1.772 (2.015 OEM)
- 3rd: 1.289 (1.391 OEM)
- 4th: 1.000 (1.000 OEM)
- 5th: 0.821 (0.806 OEM)

PRODUCT NOTES:
- Included: Strengthened Main Shaft

- Prepare the following for R15M-D Type Transmissions (FC Kouki Models, FD3S): Spacer (R502-17-316) & Roller Bearing (R502-17-306A). The installation consists of simply exchanging the older parts in the transmission with these new pieces. OEM installation manual is also highly recommended to have upon installation.
- Please note that this kit changes your existing OEM 5th gear's ratio. Your existing 4th gear is also used, and unchanged with this kit.

Compatibility

Compatibility is from maker for JDM cars only. We don't guarantee fitment. Always do your own research before purchase. After-sale support does not include installation support.

Mazda RX-7 FD3S Type I 13B-REW (12/1991-09/1994)
Mazda RX-7 FD3S Type II 13B-REW (09/1994-03/1995)
Mazda RX-7 FD3S Type III 13B-REW (09/1994-01/1996)
Mazda RX-7 FD3S Type IV 13B-REW (01/1996-12/1998)
Mazda RX-7 FD3S Type V 13B-REW (01/1999-09/2000)
Mazda RX-7 FD3S Type VI 13B-REW (10/2000-08/2002)