Customise Volkswagen 16v ABF/KR/9A 45mm EFI Direct-to-Head Throttle Bodies (ITBs)
Upgrade your VW 16v engine performance with AT Power’s 45mm Electronic Fuel Injection (EFI) Direct-to-Head (DTH) Throttle Bodies, engineered specifically for Volkswagen ABF, KR, and 9A engines.
Perfectly port-matched to OEM intake ports, these shaftless twin housing throttle bodies are designed for seamless bolt-on installation to short and tall block engines found in popular models such as the Golf GTI 1.8L/2.0L 16v, Scirocco, and Bora.
Compatible Engines:
- KR – 1.8L 16v (found in Mk2 Golf GTI 16v and early Scirocco 16v models)
- 9A – 2.0L 16v (used in some Passat, Corrado, and U.S. market models)
- PL – 1.8L 16v (used in some early Golf/Scirocco 16v applications)
- ABF* – 2.0L 16v (widely used in Mk3 Golf GTI, Seat Ibiza Cupra, and conversions)
*Some ABF engine variants may require a modified or aftermarket coolant water connection for adequate throttle body clearance.
These engines share a similar 16v cylinder head bolt pattern and intake port spacing, making them ideal for direct-to-head throttle body setups.
Key Features & Benefits:
- Direct-to-Head (DTH) EFI Throttle Bodies: Designed for precise alignment with OEM ABF/KR/9A cylinder heads.
- Shaftless Technology: Patented Shaftless butterfly valve design improves air velocity by 10% and throttle response by eliminating the central throttle shaft obstruction.
- Twin Oval Housing: Precision CNC-machined from lightweight billet aluminium for optimal strength-to-weight performance.
- Improved Induction Airflow: Knife-edged butterfly blades reduce turbulence and increase engine power.
- Fully Assembled: Supplied ready to bolt on, with no additional fabrication required.
Optional Features:
- Drive-By-Wire (DBW) Compatible: Add an ETA (Electronic Throttle Actuator) for cutting-edge throttle control in motorsport and high-performance applications.
- Throttle Position Sensors (TPS): Choose between rotary contact or hall effect contactless sensors for reliable tuning input.
- Make Power personal with anodised colour finishes to suit your setup
If you require something more bespoke, please contact us.
Complete your build. Sold Separately:
- AirFlow Synchrometer here.
- Megaflow Air Filter JC50/S/65 here.
- 3m Motorsport Cable here.
- Throttle Twin Housing – 1 per Cylinder – 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.

















