I recently purchased a replacement spark plug for my car's ignition system and i must say it exceeded my expectations. Through trial and error, I found that this particular spark plug from the Performance A7TJC Electrode Spark Chinese line significantly improved my car`s overall performance. The ignition process became faster and smoother, resulting in enhanced fuel efficiency .However, I did notice that the packaging could be more informative, as it took some extra research to ensure compatibilSee full review