Do iridium tip spark plugs improve engine performance?

Yes, iridium tip spark plugs can improve engine performance compared to standard copper or platinum plugs. They provide better ignition, enhanced fuel efficiency, and increased durability due to their higher melting point and resistance to wear. This leads to more consistent combustion, improved throttle response, and potentially better overall engine efficiency. However, the extent of performance improvement can vary depending on the vehicle and its specific engine requirements.