The Hybrid Racing 75mm K-Series Throttle Bodies are available in both PRB/PRC and RBC/RRB/RRC/RBB configurations, giving builders a true bolt-on solution regardless of which intake manifold their engine uses. Precision-machined from 6061-T6 billet aluminum, both versions feature a full 75mm smooth bore to eliminate airflow restrictions, dual sealed ball bearings for smooth throttle operation, staked butterfly screws for long-term reliability, and an included thermal insulating gasket to help reduce heat soak. The PRB version is designed specifically for K20A2, K20Z1, and other PRB/PRC-style manifolds, while the RBC version is purpose-built for the later RBC, RRB, RRC, and RBB manifolds, allowing for a true 75mm opening without compromise. Both models include a redesigned throttle cable bracket, improved IACV clearance, OEM-style sensor mounting, and multiple throttle cable mounting positions for easy installation in K-swapped EG, EK, DC, EP3, and RSX applications. Whether you're building a high-revving naturally aspirated engine or a high-horsepower turbo setup, Hybrid Racing's 75mm throttle bodies deliver increased airflow, crisp throttle response, and the OEM-quality fit and durability needed for street and track use alike.
