Sep 17, 2021 · The 6-speed gearbox of the MX-5 NC can also handle forged engines, but the power should not be higher than 300 HP and 420 Nm, so that you do not suddenly stop due to a gearbox damage. Last but not least, the MX-5 ND, which completes the various series of the MX-5: There is only one variant of the manual gearbox, the 6-speed gearbox. ymDUK.

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