08-31-2009, 02:17 AM
Anyone have any experience with these spark plugs and a d16z6 or any "japanese" engine for that matter? i bought sum and am having sum issues. Prior to these i had my good-ol' NGK's. please let me know if anyone has had issues or can help me troubleshoot my ignition problems. they are e-3 spark plugs with a "diamond-fire" technology.