OS Giken Mazda FC3S RX-7 5-Speed close ratio gear kit For use with MT031-CH5

For use with MT031-CH5

Movement Alteration Kit Included

Subaru Impreza (GC8) - EJ20

Mitsubishi Lancer Evo 10 CZ4A 4B11T

-Reuses factory drain/fill bolts and upper breather assembly from OEM cover

OS Giken Mazda FC3S RX-7 5-Speed close ratio gear kit For use with MT031-CH5We 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. 578: 1 2nd: 1. 772: 1 3rd: 1. 289: 1 4th: 1. 000: 1 5th: 0. 821: 1 Reinforced