CRC's MAF and Throttle Body Single-Use Twin Pack, 1 Kit, is designed to clean mass air flow sensors and housing in fuel-injected gasoline engines, including both throttle body and multi-port types. This performance twin pack improves the air/fuel ratio, boosts MPG, eliminates hesitation, removes harmful deposits, and dries quickly. With instant horsepower gains possible in under 20 minutes, it includes Mass Air Flow Sensor Cleaner (4.5 wt oz) and Throttle Body and Air Intake Cleaner (5 wt oz).