这是测试环境

Smog Air Pumps

The intake and exhaust system means that the engine needs the assistance of the intake and exhaust system during operation, and these two systems make up the intake and exhaust system. The intake system consists of an air filter, air flow meter, intake pressure sensor, throttle body, additional air valve, an idle control valve, a resonance cavity, a power cavity, an intake manifold, etc. Automotive exhaust system refers to the system that collects and removes exhaust gases, which usually consists of an exhaust manifold, tailpipe, catalytic converter, sensor exhaust temperature, an automotive silencer and an exhaust pipe.