Granatelli 103mm natural-finish drive-by-wire throttle body for GM LS and LSX applications using a factory-style six-pin connection. Machined from 6061-T6 billet aluminum.
 
The 103mm opening adds airflow area for engines that have outgrown a factory throttle body. It supports draw-through or blow-through boost up to 25 psi and installs as a complete assembly without swapping internal parts from the old unit.
 
6061-T6 billet aluminum. Natural finish. 103mm bore. GM six-pin drive-by-wire connector. Throttle body and four M6-1.0 x 40 mounting bolts included. Part GMTBLS3.