FD3S gearbox upgrade

  • enuine HKS sequential 6-speed gearbox for the Mazda RX-7 FD3S, built for serious performance and motorsport use. This transmission is a direct fit for FD chassis and is engineered to handle high-power rotary applications with fast, positive gear engagement. Ideal for track, drag, and circuit builds, it delivers true sequential shifting for maximum control and durability under extreme driving conditions. A rare and proven HKS unit, perfect for anyone looking to elevate their FD to true race-level performance.

    HKS Sequential 6-Speed Gearbox – Mazda RX-7 FD3S | Genuine Race-Proven Sequential Transmission

    $1,700.00

    For serious Mazda RX-7 enthusiasts and motorsport competitors, few upgrades transform the driving experience quite like a true sequential transmission. This genuine HKS Sequential 6-Speed Gearbox – Mazda RX-7 FD3S is engineered specifically for drivers who demand lightning-fast gear changes, exceptional durability, and race-ready performance.

    Designed as a direct-fit transmission for the FD3S chassis, this HKS sequential gearbox was developed to withstand the extreme demands of high-horsepower rotary applications while providing the precision shifting required in competitive motorsport environments.

    Unlike traditional H-pattern transmissions, a sequential gearbox allows drivers to shift through gears with a simple forward and backward motion, significantly reducing shift times and improving vehicle control under acceleration and braking.

    Whether you’re building a dedicated track car, drag racing machine, time attack weapon, or professional motorsport project, this HKS Sequential 6-Speed Gearbox delivers the performance, reliability, and race-proven engineering that have made HKS one of the most respected names in automotive performance.

    Rarely available and highly sought after, this transmission represents an outstanding opportunity for FD3S owners looking to elevate their build to true competition-level standards.

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  • Trust (GReddy) 6-Speed Dog Transmission

    Trust (GReddy) 6-Speed Dog Transmission – Mazda RX-7 FD3S | Race-Proven Dogbox Gearbox

    $1,200.00

    For serious Mazda RX-7 enthusiasts, the transmission is one of the most important components in any performance build. The Trust (GReddy) 6-Speed Dog Transmission – Mazda RX-7 FD3S is engineered for drivers who demand rapid gear changes, exceptional durability, and race-ready performance in high-horsepower rotary applications.

    Developed by GReddy, one of Japan’s most respected performance brands, this 6-speed dogbox transmission is designed to withstand the punishment of motorsport use while delivering the fast, positive engagement that competitive drivers rely on. Whether you’re building a dedicated circuit car, drag racing machine, time attack weapon, drift car, or serious street-driven FD3S, this gearbox provides the strength and responsiveness needed to maximize performance.

    Unlike conventional synchronized transmissions, a dog engagement gearbox is built for aggressive shifting under demanding conditions. The result is quicker gear engagement, reduced shift times, and a direct mechanical connection that serious enthusiasts appreciate.

    Rare, desirable, and purpose-built for performance, the Trust (GReddy) 6-Speed Dog Transmission remains one of the most sought-after drivetrain upgrades available for the Mazda RX-7 FD platform.

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