Ngk Spark Plug DPR8EA-9 (Threaded Top)
Ngk Spark Plug R0409B-8 (Racing) (Threaded Top)
Ngk Spark Plug IMR9E-9HES (Laser IR) (Threaded Top)
Ngk Spark Plug ZGR7GI-13G (Laser IR) (Fixed Top)
Ngk Spark Plug BR8ES (Fixed Top)
