ACCEL Super Coils feature advanced bobbin technology for maximum performance, highly specialized silicon magnetic steel cores, optimized windings, proper resistance and engineered turn ratios that deliver a high performance, quality coil. Specialized high temperature epoxy resists shock and vibration, while increasing thermal conductivity. These are direct high performance replacements for OEM coils. Features: Direct bolt-in replacement Meets or exceeds Original Equipment (O.E.) specifications Hyundai and Kia Original Equipment Manufacturer (PN 27301-2B120) Advanced bobbin technology for maximum output and performance Compatible with the vehicle On-Board-Diagnostic System and will not set a trouble code