Mazda FD3S RX-7 4.444 40:9 Differential Gear FINAL DRIVE SET RX7 TT 13B-REW TT
438,70 €
Super hard to find 4.444 Final gear set for FD3S RX7. It will give you that extra torque that you want. making your gears closer together more than the 4.3 gear set. It would be a huge leap from 4.1 std gear ratio.
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