OS Giken – 5-Speed Close Gear Kit w/ Input Shaft – Mazda RX-7 FC3S
OS Giken close-ratio gear sets offer greatly increased gear strength, along with closer gear ratios to suit racing applications. The retention of normal synchromesh parts and a helical gear design means the gears are still almost as quiet as a standard gear set, so this is an excellent upgrade for street-driven vehicles too.1st Gear: 2.5782nd Gear: 1.7723rd Gear: 1.2894th Gear: 1.0005th Gear: 0.821 Application List * Mazda RX-7 FC3S (R15M-D)Strengthened input shaft Suits applications up to 600hpR15M-D transmission onlyUpon purchasing please let us know what vehicle you would like the set for.
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