MFactory Close ratio gears (Y1/Y21/S1/S4C/S80/S9B transmissions)
Achieve the ultimate in acceleration with the MFactory B-series HONDA Close Ratio Gears. Diamond Cut to exacting tolerances from fully Carburized Forged Nickel-Chromoly Steel and put through our own proprietary heat treatment process, you will not find stronger, more reliable product on the market. The special treatment process makes our gears several times stronger & tougher than OEM Gears and are specifically designed to endure the demanding requirements of high-power track/drag cars.
After installing MFactory gears, you will experience a phenomenal increase in acceleration despite a lower top speed.
Made from imported Japanese Steel. Forged and Cryo-Tempered for unsurpassed toughness. Advanced Shot Peening technology increases surface hardness and advanced gear geometry designed using industry leading software ensure power is put to the ground. Choose from 3rd, 4th, and 5th. 's' at the end of the ratio = STRAIGHT CUT.
Please note:
1: Slight modification required to gearbox casing when installing 4th Gear (1310, 1.357, 1.410) and 5th Gear (1.129, 1.207). See the picture for more details.
Available ratio's:
1st: 3.070
3rd: 1.700
3rd: 1.667
3rd: 1.636
4th: 1.410
4th: 1.357
4th: 1.310
5th: 1.207
5th: 1.129
5th: 1.054
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