FITMENT:1)Compatible with 2006-2011 Hyundai Accent 1.6L L4, 2006-2011 Kia Rio 1.6L L4, 2006-2011 Kia Rio5 1.6L L4 Ignition Coil: German-imported high-purity copper windings, silicon steel core and high temperature resistant epoxy resin and other high quality materials provide efficient power transmission, anti-oxidation and corrosion resistance to ensure stable high voltage output from coil pack,reduce ignition failure. Coil Pack OE number: UF499, GN10330, 673-8308, 27301-26640, C-691, B079, E999, 178-8290, IC579, 48972, 49179, C691M4, UF499T, U5073. Iridium Spark Plug:1)center electrode adopts 360°continuous laser welding and cold extrusion process to produce more concentrated and stronger sparks;2)Nickel content up to 90%,high resistance to ablation and rust,life time up to 60,000-100,000 miles;3)High alumina ceramics(95 ceramic),high temperature resistance and good insulation;4)Precise ignition,optimized MPG,reduced carbon deposition,stable performance Spark plugs and coil packs kit optimize engine of fuel efficiency up 15%-20%,reduce engine failures such as lack of power,start-up failures,increased fuel consumption etc,reduces exhaust emissions, meets EPA standards;Precisely matches OEM specifications,direct plug-and-play.When purchasing coil,please pay attention to input your car information such as Year, Brand, SubModel,Liter and Aspiration into amazonconfirmedfit navigation bar to ensure that you match correct product KacuYelin is manufacturer with mature and modernized parts production line, manufactured in TS16949 certified facilities. After layers of research and development and testing, insisting on good products to serve public and upholding principle that users are happy to use and drive with peace of mind. If you have any questions, welcome to communicate with us, we will be happy to help you solve your problems