UF664 Ignition Coil and Spark Plug Kit - Complete Ignition Performance Upgrade. Restore reliable engine performance with this complete ignition tune-up kit featuring 4 UF664 ignition coils and 4 iridium spark plugs. Designed for select Subaru models, this direct-fit replacement set helps maintain smooth starts, efficient combustion, and dependable operation. Complete kit includes 4 UF664 ignition coils and 4 iridium spark plugs. Compatible with 2012 Subaru Impreza 2.0L. Replaces OEM part numbers UF664, 22433AA630, GN10726, C876, and 49184. Direct-fit design with factory-style ...