OS Giken Mazda FC3S RX-7 3-Speed close ratio gear kit Stock capacity is 0

Stock capacity is 0

Subaru BRZ FA20A (All)

- OEM Nissan PN:38220-1NC0A x2 (Threaded flange holes type)

Bearing Spacer provided for C6 application

OS Giken Mazda FC3S RX-7 3-Speed close ratio gear kit Stock capacity is 0We carefully research each engine and intended racing application to formulate the most suitable gear ratios to maximize the engines potential. The gears are intended to keep the engine operating at its peak optimal power band thus allowing the vehicle to continue to accelerate as efficiently as possible. Fitment: Mazda RX 7 (FC3S) Product Details: Close Ratio Gears 1st: 2. 714: 1 2nd: 1. 742: 1 3rd: 1. 267: 1 Chemically heat treated for strength and