NGK R5724-8 Racing Spark Plugs

NGK Racing R5724 Spark Plugs#41-R5724Three heat ranges colder than stock, gapped at .032Ignitability of V-Power Spark Plugs "NGK's unique V-Power design directs the spark to the edge of the electrode where it can develop more rapidly. This allows easier and more complete combustion of the air/fuel mixture. The increased ignitability allows the engine to burn air/fuel ratios that would otherwise be too lean." V-Groove Explanation Quenching Effect"The amount of spark which is absorbed by the center and ground electrode is referred to as the quenching effect. The V-Power plug is designed to draw spark to the edge of the electrode. Thus, the quenching effect is minimized, resulting in more effective, complete combustion."NGK Racing R5724 Spark Plugs fits the following vehicle(s):2009 Cadillac CTS-V 2010 Cadillac CTS-V 2011 Cadillac CTS-V 2012 Cadillac CTS-V 2013 Cadillac CTS-V 2014 Cadillac CTS-V 1999 Cadillac Escalade 2000 Cadillac Escalade 2005 Cadillac Escalade 2008 Cadillac Escalade 20