For Jeep enthusiasts seeking a
68mm throttle body with a 2-screw Idle Air Control (IAC) housing, the most prominent option is from F&B Throttle Bodies. This size is specifically designed for high-performance applications, such as stroked 4.0L motors (e.g., 4.5L, 4.6L, or 4.7L variants) that require significantly more airflow than the stock 60mm unit.
