
OS Giken OS‑88 six‑speed sequential gearbox option listed for Nissan Skyline applications provides a six‑speed sequential transmission option with the OS‑88 designation and a specified ratio set. It is presented as a gearbox upgrade aimed at drivers seeking a sequential shift solution for Skyline platforms. A purpose‑built sequential transmission choice intended to replace or upgrade compatible Skyline gearboxes where applicable.
OS Giken Nissan Skyline OS-88 Six Speed Sequential Gearbox Option ratio 1