NGK Standard Spark Plug BPR8ES 3923 Dust Cover and charging on cold days

and charging on cold days

With the “1968”

As a result of this the engine performs better

causing engine knock

NGK Standard Spark Plug BPR8ES 3923 Dust Cover and charging on cold daysSTANDARD NICKEL Performance Spark Plugs NGK nickel spark plugs feature a specially designed v groove center electrode, improving ignitability and reducing quenching. The 98% pure copper core delivers increased heat dissipation for more reliable starts and reduced risk of overheating. Cold rolled threads prevent cross threading and damage to cylinder heads Trivalent plating eliminates need for anti seize High grade alumina silicate ceramic *By request