Blox Racing Fuel Injection Throttle Body

Blox Racing Fuel Injection Throttle Bodies: Precision Airflow for Import Performance

When it comes to extracting every last bit of power from a Honda or Acura engine, few upgrades make as immediate an impression as a high-performance throttle body. Blox Racing has earned a dedicated following among import and sport compact enthusiasts since its founding in 2003, and its fuel injection throttle body lineup is a prime example of why. Each unit is engineered to increase incoming airflow, sharpen throttle response, and help unlock the horsepower and torque gains that other engine modifications are already primed to deliver.

Two Distinct Product Lines for Street and Track

Blox Racing offers two well-defined throttle body series, giving builders the ability to match their budget and performance goals without compromising on quality.

• Billet V2 Series: The flagship of the Blox Racing throttle body range, these units are precision CNC machined from AL6061 billet aluminum. Available in 70mm, 72mm, 74mm, and 76mm bore sizes and finished in either silver or black anodized, the V2 billet throttle bodies are built for Honda B, D, H, and select F-series engines, as well as K-series applications. Each unit features brass throttle plates, stiffer throttle springs, and sealed bearings for quick, consistent response and long-term smooth operation. The larger bore sizes directly improve incoming airflow, translating to a noticeably snappier throttle feel and measurable gains in usable power.
• Tuner Series: Cast in aluminum and designed as direct-fit replacements, the Tuner Series throttle bodies are Blox Racing's more accessible entry point for enthusiasts who want genuine performance without the premium billet price tag. Available for Honda B/D/F/H and K-series engines, these units come in bore sizes ranging from 68mm to 72mm. The Tuner Series dual-pattern design fits both PRB/PRC and RBC/RRC intake manifolds, and enhanced throttle springs deliver crisp response on every rev. All factory sensors can be reused without modification, making installation straightforward, and a port plug is included for those running full race setups who wish to block off the IACV.

Why Blox Racing Stands Out in This Category

What separates Blox Racing throttle bodies from generic aftermarket alternatives is the brand's commitment to manufacturing integrity. Blox Racing and its manufacturing partners meet or exceed ISO 9001 certification, ensuring consistent quality control across every unit produced. The manufacturing processes used either meet or exceed OEM standards, while the materials mirror the same quality specifications used by major OEM automakers. This means you're not just bolting on a bigger opening — you're upgrading to a component engineered to last and perform reliably under demanding conditions.

Whether you're building a street-driven daily driver with a healthy intake system or assembling a dedicated track car that demands every advantage, Blox Racing's throttle body selection offers a well-matched solution. Explore the full Blox Racing brand catalog to see how their throttle bodies fit into a broader performance build, or browse all fuel injection throttle bodies to compare options across top manufacturers.