OS Giken – 5-Speed Close Gear Kit w/ Input & Main Shaft – Nissan Silvia/180SX S13/S14

SKU: 3494
Available on back-order


Elevate your racing performance with OS Giken’s close-ratio gear sets. Engineered for enhanced gear strength and designed for racing applications, these sets offer precise gear ratios. What makes them stand out is the integration of normal synchromesh parts and a helical gear design, ensuring near-silent operation?a perfect upgrade for both racing enthusiasts and street-driven vehicles. Strengthened input and main shafts, suitable for up to 600hp applications in Nissan Silvia S13, 180SX S13, and Silvia S14 (SR20 only) with FS5W71C transmission. Transform your ride with OS Giken’s precision and power. Specify your vehicle model upon purchase for a personalized performance boost.

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Unlock the full potential of your racing experience with OS Giken close-ratio gear sets. Engineered for superior gear strength and optimized for racing applications, these gear sets feature closer gear ratios to elevate your performance on the track. What sets them apart is the seamless integration of normal synchromesh parts and a helical gear design, ensuring that the gears operate with remarkable quietness?making it an ideal upgrade not only for the intense demands of racing but also for street-driven vehicles seeking enhanced precision.

Gear Ratios:
1. 1st Gear: 2.596 (OEM 3.321)
2. 2nd Gear: 1.765 (OEM 1.902)
3. 3rd Gear: 1.250 (OEM 1.308)
4. 4th Gear: 1.000 (OEM 1.000)
5. 5th Gear: 0.833 (OEM 0.759)

Application List:
– Nissan Silvia S13
– Nissan 180SX S13
– Nissan Silvia S14 (SR20 only)

Key Features:
– Strengthened input shaft and main shaft
– Suitable for applications up to 600hp
– Compatible with FS5W71C transmission only

Upgrade your driving experience today! When making your purchase, kindly specify the vehicle model for a personalized gear set that perfectly aligns with your performance needs. Elevate your ride with OS Giken’s precision-crafted gear technology.


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