Serpent SER903726 2-Speed XLI Gen2 Race Upgrade Kit  [SER903726]

Bolt-On 2-Speed Upgrade for the Viper 989 GP

The Serpent SER903726 2-Speed Set XLI Gen2 brings a practical transmission upgrade for Viper 989 GP owners who want cleaner shift behaviour. The kit is engineered to smooth gear transitions so your car stays composed under race conditions.

Sharper Shifting for Club and Track Racing

Made with track use in mind, this 2-speed set improves acceleration and engine braking feel on the circuit. The XLI Gen2 geometry aims to deliver dependable shifts lap after lap to help lap-time consistency.

Fitment and Simple Installation

This 2-speed set is matched to the Viper 989 GP (SER903018) platform for a direct fit and straightforward installation. The design keeps installation time low so you can get back on the track quickly.

Built for Repeated Use

Manufactured from durable components, the Serpent 2-Speed Set XLI Gen2 is intended to hold up to regular club and regional racing. Its sensible construction reduces service frequency and helps maintain reliable operation.