BX45i Throttle Bodies
BLP 5251BX45i EFI Throttle Body – Dominator®-Style Performance for Electronic Fuel Injection
The BLP 5251BX45i throttle body brings Made-in-USA precision and performance to EFI enthusiasts looking for serious airflow in a 4500-series footprint. Designed to meet the demands of high-horsepower electronic fuel injection systems, the BX45i features massive 2.600″ (66.04mm) throttle bores, delivering exceptional flow for aggressive racing and street-strip applications.
CNC-machined from billet aluminum and built with the quality you expect from BLP, the 5251BX45i bolts directly to most Dominator®-style intake manifolds, making it an ideal upgrade for racers transitioning from carburetion to EFI.
Note: Due to the large blade diameter, some cast intake manifolds may require clearancing inside the upper plenum area for proper fitment.
Key Features:
- Flows extreme CFM with four 2.600″ (66.04mm) throttle plates
- Standard 4500 (Dominator®) flange for direct bolt-on fitment
- Precision billet construction ensures strength, consistency, and durability
- Compatible with GM TPS sensors or Delphi SS10462 (sensor not included)
- Designed specifically for high-performance EFI systems
- Made in the USA by BLP Racing Products
Whether you’re upgrading an existing EFI setup or building a new high-horsepower application from the ground up, the BX45i offers unmatched airflow and BLP’s proven race-bred engineering.
BLP 5251BX45i – EFI Power. BLP Precision.