Silver Honda K20/K24 DC5/EP3 45mm EFI Throttle Bodies Silver – Electric Water Pump Required

Honda K20/K24 DC5/EP3 45mm EFI Shaftless ITBs – Direct-to-Head Throttle Bodies

Unleash the true potential of your Honda K20A, K20A2, or K24 engine with AT Power’s Direct-To-Head (DTH) 45mm Electronic Fuel Injection (EFI) Individual Throttle Bodies (ITBs). Designed for DC5 and EP3 chassis applications, these high-performance ITBs are fully port-matched to OEM intake ports, ensuring seamless integration and maximum airflow.

Compatible Engines:

• Honda K20A / K20A2 / K24 engines
• Chassis fitment: DC5 Integra, EP3 Civic Type R, Acura RSX, Accord Euro R

Note: Engine uses a unique port layout specific to the ST170 variant

Product Details:

• Silver Anodised
• Aerospace Grade Billet Aluminium patented “Shaft-less” 45mm Throttles
• 70mm Black Laser Sintered PA12 Nylon Extensions
• 40mm Open Aluminium Ram Pipes (trumpets)
• Centre Cable Pull Linkage
• Right Hand Side Magneti Mareli Type TPS Mounting
• JIC-6 AN6 Standard Fuel Rail Fitment for Injected
• Pico Injector Mounting Brackets

Key Features & Benefits:

• Precision Fitment: Port-matched to the OEM ST170 cylinder head for optimal airflow and ease of installation.
• Shaftless Technology: Patented Shaftless butterfly valve design improves air velocity by 10% and throttle response by eliminating the central throttle shaft obstruction.
• Twin Oval Billet Housings: CNC-machined from high-grade billet aluminium for superior strength, durability, and reduced weight.
• Fully Assembled, Ready to Install: Delivered pre-assembled for direct bolt-on installation to the cylinder head intake face.
• EFI Ready with injector Blank-Offs: Allows flexibility for custom fuel delivery setups. Fuel rails and injectors sold separately.
• 45mm Bore Dimeter: Designed to maximise naturally aspirated performance for the ST170.

Performance Advantages:

• Increased horsepower and torque
• Lightweight and durable
• Sharper throttle response and increased engine performance
• Perfect for naturally aspirated and tuned applications
• Ideal for motorsport applications, track day builds, race cars or high-performance engine builds and street setups

If you require something more bespoke, please contact us.

Engine Relocation

For fitment into standard (OEM) vehicles, it may be necessary to relocate the power steering pump or alternator & replace the existing water pump with an aftermarket electric water pump to allow package clearance for the installation of these Throttle Bodies. These ancillary products are directly available through:

TEGIWA IMPORTS Ltd (UK) Press here for TEGIWA IMPORTS website.

Complete your build. Sold Separately:

• AirFlow Synchrometer here.
• Megaflow Air Filter JC50/S/65 here.
• 3m Motorsport Cable here.
• Throttle Twin Housing – 1/8″ BSP to 5/16″ (8mm) Hosetail Fitting here.

Important:

• ECU Compatibility and Tuning Required: Proper engine management system tuning is necessary for optimal operation and fuelling.
• Maps are supplied “as-is”. Professional dyno tuning is strongly recommended to ensure optimal performance and avoid potential engine damage.

If you require something more bespoke, please contact us.

Motorsport Use Only! This product is designed for professional motorsport applications and must be installed by a qualified technician. If assistance is required, please contact AT Power’s sales team.