
The OS Giken OS‑88 six‑speed sequential gearbox for Nissan Skyline applications is a sequential transmission option identified as OS‑88 with option ratio 2. It provides sequential shifting functionality for motorsport or competition builds where a sequential gearbox is required. The listing emphasizes the OS‑88 model and its option ratio without additional installation or compatibility claims beyond the stated Skyline association.
OS Giken Nissan Skyline OS-88 OS-88 Six Speed Sequential Gearbox Option ratio 2