Our new 2026 BOSS EFI throttle body kit is a complete custom system from the head up,

BOSS is available for most late model, four-cylinder motorcycle engines.

 

• Rolled forward design fits all cars and clears all dash's.

• LIGHTEST ON THE MARKET - 7 pounds including the air filter.

• 4 Bosch fuel Injectors, precise dynamic flow matched, 1% or less.

• Walker Performance Filter.

• High Quality TPS Sensor.

• Fully modular and configurable, the same Injection hardware will run on all 4 brands with a change of intake runner and ECU map.

• Total simplicity

• Race winning, Track Championship proven performance and reliability with an exceptionally wide powerband.

• Complete range of runners and throttle sizes to suit Yamaha, Suzuki, Kawasaki and Honda.

• Runners can be tailored for rpm range or specific requirements, one size does not suit every track shape, size , or style of racing.

• Our system is aimed primarily at those with existing cars running Carbs, MFI, or EFI that want something a lot simpler and lighter that can offer an upgrade in performance and a break from weekly maintenance.

• Most existing customers perform basically ZERO weekly maintenance, just proper air filter maintenance and go racing..

• Online support and advice.

• Detailed check list of car based wiring and fuel system requirements upon purchase.

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