Denso IKH24 Performance Spark Plug - Each | IKH24
APR Performance recommends these are to be used with the IS38 Turbo upgrade for optimum performance. These IKH24 spark plugs shoudl be gapped to 0.024" and should be changed every 10-15k miles to acheive the best possible performance.
⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov