6 Pack NGK 93175 Iridium IX Spark Plugs LKR7DIX-11S - High Performance Spark Plugs for Cars, Trucks & SUVs - Perfect for Engine Tuning & Fuel Efficiency Improvement

Love these plugs. Been installing them in my Mazdas for 14 years. Easy to do and they last. I know it says no need to worry about the gap they come gapped but I trust no one and check everything. A couple were outside the required gap so once adjusted my 4 year Mazda CX-5 ran better than new. Legit it idled smoother and accelerated easier than it did when it was new I’m not kidding! Great plugs