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Ignition coils are an essential component in the ignition system of automobiles, serving to convert low voltage from the car's battery into the high voltage required to create an electrical spark in the engine's cylinders. These coils play a crucial role in the overall performance and efficiency of the vehicle. In automotive tuning, upgrading or replacing ignition coils can lead to improved horsepower, better fuel economy, and smoother acceleration. Ignition coils are also closely related to automotive exhaust systems, as their function is critical for the combustion process that ultimately expels exhaust gases from the vehicle. In summary, ignition coils are a vital element in the operation of any internal combustion engine, contributing to both performance and emissions control.