How to find the right Automotive Performance Fuel Throttle Bodies AI guide

Written by an AI model from its trained knowledge.

What the AI looks for in Automotive Performance Fuel Throttle Bodies

Control type: Match your engine's throttle control: drive-by-wire or cable. A DBW unit must also be compatible with your ECU and pedal. A mismatched DBW body throws faults or goes into limp mode.
Flange pattern and bore: The bolt pattern and bore must match your intake manifold, or you must use the matching adapter. On LS engines, 4-bolt bodies come in several bore sizes. A wrong flange simply won't bolt on, and a step at the joint disrupts airflow.
Size to the engine: Only go bigger in bore when the intake and engine airflow already exceed what the stock body can flow. An oversized bore on a stock engine hurts drivability and can make the throttle feel jumpy, with little gain.
Tuning: Plan to recalibrate idle airflow and throttle tables after the swap. A larger bore changes idle and part-throttle airflow, which causes stalling or a surging idle.
Sensor compatibility: The TPS, IAC or ETC connectors must plug into your harness without splicing. Mismatched sensors are the most common cause of throttle body swap trouble.

Nick Williams: High-quality DBW and cable LS and Gen III Hemi throttle bodies.
BBK: Wide coverage of Ford, GM and Mopar bolt-on throttle bodies.
Holley: EFI throttle bodies and Sniper TBI units.
FAST: Big-bore LS throttle bodies.
Accufab: Billet throttle bodies for Mopar and Ford.
Edelbrock: Throttle bodies paired with its own intake manifolds.