NGK R5671A-7 Racing Spark Plugs #4091 Set of 8

NGK R5671A-7 Spark Plugs - Set of 8 NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Special insulator nose configurations improve throttle response. Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator, provides superior strength and betterYou may also like Michigan Motorsports 7-Layer 5.3L 4.8L Small Bore MLS Head Gasket Pair for Boosted Nitrous Turbo Supercharged 4.8 5.3 LS.