Suzuki Hayabusa Gen-1 42mm Electronic Fuel Injection (EFI) Throttle Bodies (ITB's)


These Direct-To-Head (DTH) set of Shaftless Butterfly Twin Housing Throttle Bodies (ITB's) are designed to match the Original Equipment Manufacturer (OEM) cylinder port spacing & intake profile for the Suzuki Hayabusa 1300R-X (1999), GSX-1300R-Y (2000) and GSX-1300R-K1-K7 (2001-2007) Generation-1 Engines, utilising (4 x aftermarket Fuel Injectors - available to purchase). 

They feature AT Power’s lightweight precision machined billet aluminium twin round housings design, with our unique patented ‘Shaftless’ technology and knife edged butterfly valves providing proven improved induction airflow speed and increased engine performance.

AT Power has developed a unique range of Direct to Head (Electronic Fuel Injection (EFI)) Individual Throttle Body systems offering you multiple configurations and a range of optional extras to meet your specific engine tuning requirements.

Our Direct to Head Twin Hayabusa Throttle Bodies are supplied fully assembled with vacuum take-off fittings fitted as standard and ready to bolt on directly to the (OEM) engine intake connections.

We offer a choice of product options including Billet machined Throttle linkage configurations including Drive-By-Wire (DBW), Throttle Positional Sensors (TPS) mounting kits, Billet aluminium Extension Tubes (Runners, Velocity Stacks) lengths, billet aluminium Ram Pipes (Trumpets) lengths and one-piece billet aluminium Fuel Rails with brackets to suit a range of fuel injectors.

We also offer optional extras including fuel rail fittings, rotary contact or Hall Effect contactless Throttle Positional Sensors (TPS), Drive-By-Wire (DBW) actuation and a choice of 18 different anodising colours. Anodising-Colour-Swatch

To complete your installation, we also offer ancillary supporting parts including fuel injectors, air filtration, motorsport cables, tuning aids, fuel pressure regulator and engine management systems (ECU’S). 



This product has been designed with a choice of Inlet lengths (Extension Tubes, Runners, Velocity Stacks) suitable for packaging within road & race car applications, for motorcycle applications please contact the sales team for alternative bespoke Ram Pipes (Trumpets) we can offer to suit packaging space.

This product has been designed for use with aftermarket Fuel Injectors which can be selected from the Fuel Injector option sets below.

For Hayabusa Throttle Bodies compatible with the Original Equipment Manufacturers (OEM) Fuel Injectors, refer to website for alternative (OEM) standard fitment options.  

For bespoke Drive-By-wire applications, please contact our sales team for assistance.

This product requires an after-market engine management system (ECU) for correct engine fuelling operation.

AT Power offer a choice of after-market (ECU's) which can be viewed on the ECU's & Wiring Looms page of our website, or by following this link ECU's & Wiring Looms

As with all after-market engine management systems, base maps are offered “as-is” and dyno tuning is fully recommended, to avoid causing any damage to your engine.


Product Informational Downloads:

PDF Package Drawing Download

Throttle Terminology


How to Order:

In-order to verify your specific requirements, and provide the correct solution for your application please select your configuration from the option sets below: 

For Boosted applications or if you require assistance, please feel free to call us and speak with a member of our sales team.


Trade Customers:

Please contact us to enquire about our trader's discount structure.


Price starting from: £1,265.00 per unit ex VAT

Brand AT Power
Product Code 102-104-00101

Price: £1,265.00 per unit ex VAT

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