This innovative Denso 3381 Spark Plug comes equipped with Denso’s patented U-shaped ground electrode. The U-Groove forms a channel for the spark nucleus to form at the instant of ignition, which generates a more potent spark.
More importantly during regular service intervals it is wise to check your spark plugs for wear, because new spark plugs will ensure for a healthy running engine, increased fuel economy, and better response. These are the factory heat range spark plugs for your vehicle and should be a direct fitment.
WARNING: Cancer and Reproductive Harm. (http://www.p65warnings.ca.gov)