AT Power Single Shaftless Butterfly Throttle Bodies Electronic Throttle Bodies
AT Power’s Drive-By-Wire (DBW) Electronic Shaftless Butterfly Throttle Bodies (ETBs) deliver a no-compromise solution for naturally aspirated and boosted competition engines demanding superior airflow. These ETBs are engineered and tested to meet the highest standards of motorsport competition.
AT Power offers a unique range of DBW single-bore throttle bodies that bolt directly onto both Original Equipment Manufacturer (OEM) and aftermarket intake manifolds, providing a complete, ready-to-use solution.
Compatible Vehicle Engines & Application:
AT Power’s DBW single throttle bodies are engineered for direct fitment to the following platforms, no manifold modification required:
Universal DBW Application (55mm-75mm): In addition to the vehicle-specific fitments below, AT Power offers DBW single throttle bodies in 55mm, 60mm, 65mm, 68mm, 70mm, and 74mm bore sizes for custom builds, aftermarket manifolds, and any application requiring a high-performance electronic throttle body. All units use standard mounting patterns and flying leads for straightforward integration with any DBW-capable ECU.
Ford EcoBoost 1.6L (52mm, SKU 102-106-00057): Direct OEM replacement for the Ford Fiesta ST MK7/MK7.5 and Focus 1.6L EcoBoost. 58mm hose inlet. Ideal for Stage 2+ EcoBoost builds running uprated turbos and aggressive tunes.
Nissan R35 GT-R VR38DETT (72mm, SKU 102-106-00065): 80mm Wiggins fitting for a secure, boost-rated connection. For high-power R35 builds where the OEM throttle body becomes a restriction. Suits 600hp+ applications.
Subaru BRZ / Toyota GT86 FA20 (67mm, SKU 102-106-00083): 2mm larger bore than OEM, direct replacement. 76mm hose inlet. Compatible with all turbo kit configurations (GReddy, HKS) and NA builds. Dyno-tested on a standard BRZ, measurable gains across the rev range.
Honda S2000 F20C / F22C (67mm, SKU 102-106-00084): Engineered for the AP1 and AP2 S2000 intake system. 76mm hose inlet. 5mm larger than OEM, with the shaftless design’s improved flow quality at the top of the rev range where the F20C breathes hardest.
Subaru Impreza WRX / STI EJ20 / EJ25 (67mm Wiggins, SKU 102-106-00067): 80mm Wiggins fitting for high-boost Impreza builds. Suits WRX, STI, and motorsport variants across the EJ-series range. The Wiggins connection is preferred for sustained high-boost competition use.
Key Features:
- Patented ‘Shaftless’ Design: Maximises airflow and efficiency.
- Lightweight: Precision-machined billet aluminium (6082-T6).
- Knife-Edged Valves: Enhanced airflow velocity.
- Largest Bore Open Area: The most unrestricted airflow in its class.
- Failsafe: Built-in Limp Home Mode and dual-redundant TPS.
Specifications:
- Failsafe Spring Return: Ensures safety in critical conditions.
- Operational Speed: 0.07 seconds per 60° rotation.
- Electrical Interface: Flying leads with a robust Hall Effect dual-output TPS (0.5V to 4.5V).
- Mechanical Interface: Standard patterns for seamless installation.
- Make Power personal: Colour anodised options to suit your setup.
- Factory Balanced: Calibrated to nominal idle for immediate installation.
Important:
- ECU Tuning Required: Proper engine management system tuning is necessary for optimal operation and fuelling.
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.
