Looking for a CDI with a little punch? This Stage I Performance CDI Electroni Ignition Coil will replace your stock CDI and give better spark to your 48cc or 66/80cc 2-stroke bicycle engine kit. This ignition coil is equipped with an NGK spark plug cap and a performance spark plug wire, giving you less resistance and power loss than your stock CDI. If you're getting less spark than before or just looking for a smoother ride, check out the Stage I Performance CDI Electron Ignition Coil and feel the performance!