Iridium Spark Plug IW20 5306 for Acura, Alfa Romeo, Audi, improves ignition performance

Iridium spark plug IW20 5306 improves ignition efficiency, compatible with after-2000 Acura, Alfa Romeo, and Audi models. Thread M14x1.25, seating length 26.5 mm, resistance 6 kΩ. Installation difficulty: medium; torque should be applied to avoid over-tightening.