MD5 checksum is a 128-bit hash value (32 characters). Use checksum values. In practice, checksum values are mainly used in three situations. First, checksum value can be used to check data integrity when data is sent through telecommunication networks such as Internet.
Performance Exhaust System. The main purpose of an exhaust system is undoubtedly to route the spent exhaust gas out of the car's engine. Along the way the exhaust gasses may be used to drive a turbocharger and now-a-days it will most definitely incorporate a catalyst converter to reduce carbon dioxide emissions.
The exhaust gas, added to the fuel, oxygen, and combustion products, increases the specific heat capacity of the cylinder contents, which lowers the adiabatic flame temperature. In a typical automotive spark-ignited (SI) engine, 5% to 15% of the exhaust gas is routed back to the intake as EGR.