RESTORE PEAK PERFORMANCE & SAVE FUEL: Unlock horsepower, boost throttle response, cut gas costs. Worn ignition parts lose power and waste fuel. Autoexact high-performance coils & iridium plugs deliver stronger, stabler sparks for full combustion—smoother acceleration, less shaking, better fuel economy ELIMINATE MISFIRE & ROUGH IDLE: Tired of shaking, check engine light (P0300-P0308 codes) or poor starting? Autoexact ignition coil packs and spark plugs kit fixes these issues, restoring smooth, quiet engine run. Enjoy reliable starts every time PREMIUM IRIDIUM & OE-QUALITY: Pre-gapped fine-wire iridium spark plugs (up to 40,000 miles life) ensure full combustion for max power and fuel economy. Epoxy-potted, heat-resistant ignition coils deliver strong ignition energy and durability—better than standard OEM parts DIRECT OE REPLACEMENT & EASY DIY: 100% OEM fit, no mods needed, plug-and-play. Made for your vehicle’s make, model & VIN. Factory pre-lubricated with green dielectric grease for true plug-and-play installation. Recommended torque: 11.06-14.75 ft·lb (15-20 N·m). Package Contents: 4pcs Ignition Coils Packs, 4pcs Iridium Spark Plugs. Refer to the install guide on the product detail page, DIY with basic tools, save on dealership labor COMPATIBILITY: Fit for 2016-2018 Hyundai Tucson 1.6L, 2017-2022 Kia Soul 1.6L, 2018-2021 Hyundai Kona 1.6L, 2016-2017 Hyundai Veloster 1.6L, 2019-2021 Hyundai Veloster 1.6L, 2020-2024 Kia Forte 1.6L, 2021-2022 Kia Seltos 1.6L, 2016-2020 Kia Optima 1.6L, 2017-2020 Hyundai Elantra 1.6L, 2015-2018 Hyundai Sonata 1.6L, 2018-2020 Hyundai Elantra GT 1.6L, 2017-2018 Kia Forte5 1.6L, 2020-2024 Kia Forte5 1.6L. Important: Fits Turbo engines ONLY. NOT compatible with Naturally Aspirated (NA) engines. OE & REPLACE NUMBER: UF817, GN10910, 273012B120, 97080,SILZKR8E8G. Before purchasing, please confirm the vehicle fitment to avoid purchasing the wrong product RIGOROUS TESTING & GUARANTEED: Each unit passes strict voltage and sealing tests. Backed by 2-year warranty & lifetime expert support. 100% guarantee for your satisfaction & engine health