Compatibility (Fit For): Mazda Protege 2001 2002 2003 2 Mazda Protege5 2002 2003 2 Package included: 2 x Ignition Coil Please review the information above carefully to make sure this part fits your vehicle. Ignition coils produce the high voltage necessary to ignite the air/fuel mixture in the combustion chamber. When not replaced, vehicle could experience no or hard start, long crank time, misfire, and catalytic converter failure. Our ignition coils are light and easy to install with the highest quality copper. The unique winding design would reduce the size and weight without sacrificing the quality. Each coil is design for specific application, low-emissions, and high energy output. They will eliminate misfires and provide maximum voltage.