【Super Power】Dual Iridium Ix Spark Plugs Are Made Of Iridium Precious Metal On Both The Main And Side Electrodes, Designed For Performance Enthusiasts. Ordinary Spark Plugs Have Only The Main Electrode Of Iridium Metal, But Our Spark Plugs Are Of Iridium Metal As The Main Electrode And The Side Electrodes, So They Will Provide Stronger Flammability, Double The Service Life, And Double The Ignitability Than Ordinary Spark Plugs. To Choose The Best Double Iridium Spark Plugs 【More Fuel Efficient】The Flameout Phenomenon Rarely Occurs When Using Double Iridium Spark Plugs,The Engine Can Also Be Kept In Good Running Condition, Resulting In Lower Fuel Consumption. So It Is Really Necessary To Replace The Good Double Iridium Spark Plugs. 【Longer Life】The Fine Double Iridium Tip Ensures High Durability And A Consistently Stable Spark. Double Iridium Alloy Has Extremely High Melting Point, Perfect For Today'S High-Tech, High-Performance Engines. Trivalent Metal Plating - Outstanding Acceleration, Long Life ,High Fuel Efficiency And Durability. Ultimate Design, Technology And Performance. 【Compatible Models】2009-2015 Corolla, 2009-2014 Matrix, 2010-2015 Prius, 2012-2015 Prius Plug-In, 2012-2015 Prius V, 2012-2014 Iq, 2008-2014 Xd, 2011-2015 Ct200h, 2013-2017a Ccord, 2014-2017 Accord, 2016-2017 Civic, 2015-2020 Fit, 2012-2016 For Mazda 3 2.0l 2.5l, 2014-2017 For Mazda 6 2.0l 2.5l, 2016-2017 Cx-3, 2013-2016 Cx-5, 2016-2017 Mx-5 Miata And Eplacement Racing Spark Plug Used By Many Professional Car Drivers; If It Has The Same Parameters As This Product, It Can Be Compatible 【OE Reference】 93501 / LKAR7BIX-11S 90919-01253 VCH20 SC20HR11 VR7SPP33 VR7NII33X VR7MII33U VR8SII33X VR7SPP30U 【Quick After Sales Service】One Order = 4 Pieces ，We Provide 12 Months Warranty Service For This Spark Plugs, And We Attach Great Importance To Every Customer'S Satisfaction. If For Any Reason We Are Not Meeting Your Expectations, Please Feel Free To Contact Us And We Will Do Our Best To Resolve All Your Concerns. The Quality Of The Spark Plug Mainly Depends On The Ignition Electrode. Our Upgrade Is To Transform The Ignition Electrode. Double Iridium Metal Is The Ix Spark Plugs Most Important Feature Of This Spark Plug. Usually Only The Main Electrode Is Use Iridium ,but Our Spark Plug Is Main Electrode And Secondary Electrode All Use Iridium Metal. Which Is More Expensive Than Single Iridium Spark Plugs. Long Life, Better Ignition Performance And Better Fuel Economy