103mm RACE Throttle Body

The Granatelli Motor Sports 103mm RACE Throttle Body (GMTBLS3B) is engineered for LSX engines, providing a significant upgrade in airflow and throttle response. CNC-machined from high-grade 6061-T6 billet aluminum, this black throttle body is designed for both naturally aspirated and forced induction applications, capable of handling up to 25 lbs of boost. This direct-fit unit features a 103mm bore to dramatically increase airflow over stock throttle bodies and improves engine response and driveability across the RPM range. It utilizes a GM 6-pin connector and works seamlessly with factory or aftermarket intake manifolds, requiring no parts to be transferred for installation. Compatibility extends to a wide range of LS engines including LS1, LS2, LS3, LS6, LS7, LS9, LSA, LSX, LQ4, and LQ9. However, a tune may be required for optimal performance. Special attention is needed for Trailblazer SS applications, as owners must call before ordering to ensure proper calibration. Additionally, one source indicates this is a Race Only product, intended solely for competition and not for use on public streets, roads, or highways.