Honda K20/K24 DC5 55mm (For Ported Cylinder Heads)


These Direct-to-Head set of Universal Individual Throttle Bodies (ITB's) feature our oversized Intake Ports for the Honda K20 DC5 Engine.

Cylinder head intake ports will need to be machined to match the intake port profile of these Throttle Bodies. Details of the Throttle Bodies Intake port profile can be viewed on the package drawing download below.

They feature AT Power’s lightweight precision billet machined Individual Throttle Bodies (ITB's) with round butterflies, along with our unique patented ‘Shaftless’ technology and knife edged butterflies 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 Universal Throttle Bodies are supplied fully assembled ready to bolt on directly to the Cylinder Head Intake face.

We offer a choice of product options of Billet machined Throttle Linkage configurations including Drive by Wire, Throttle Positional Sensors (TPS) mounting kits, Billet Aluminium Extensions (Runners, Velocity Stacks) lengths, Billet Aluminium Ram Pipes (Trumpets) lengths and one-piece Billet Aluminium Fuel Rails with Fuel Rail brackets to suit a range of Fuel Injectors.

We also offer optional extras including Fuel Rail fittings, vacuum take off fittings for vacuum assisted brakes, Rotary contact or Hall effect contactless Throttle Positional Sensors (TPS), Drive by Wire (DBW) actuation and a choice of 18 anodising colours.

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).  


PLEASE NOTE: For packaging into the standard OEM vehicle, it will be necessary to replace the existing water pump with an aftermarket electric water pump to allow clearance for the Extensions Tubes (Runners).


PDF Package Drawing Download


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 standard fitment Aluminium Extensions (Runners, Velocity Stacks) will be replaced with SLS 3D Printed Extensions (Runners, Velocity Stacks), select from Induction Type option set below.

If you require assistance, please feel free to call us and speak with a member of our sales team.


Trade Customers:

Please contact to enquire about our traders discount structure.


Price: £1,795.00 per unit ex VAT

Brand AT Power
Product Code 102-109-00012

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