19070-B1020 Ignition Coil For Daihatsu For Sirion For Terios Copen Materia For YRV 19070B1020. We use only the finest materials such as wire and wire coating. This makes our products durable and reliable in extreme conditions while providing high resistance, strong plug spark, and wear resistance. Easy to install，each coil is designed for a specific application, low emissions, they will eliminate common misfire and rough running issues and provide maximum voltage. Improved Performance，Increased ignition energy intensity for easier starting. Helps improve combustion efficiency and improve performance. Can greatly increase spark and improve performance, acceleration, starting and fuel efficiency. Reduce common ignition coil problems such as; no start/hard starting, long cranking times, misfires, lack of power, inconsistent transmission shifting, poor fuel economy, check engine light illumination.