NGK Ruthenium HX Spark Plug Box of 4 (LFR5AHX) Drivetrain>Clutch Kits - Multi Our engineers started on the

Our engineers started on the Q50 by getting you down 85mm from stock height

drivers can easily switch between the quiet mode and a sportier sound

N3H4-20-600A

full-speed RPM threshold

NGK Ruthenium HX Spark Plug Box of 4 (LFR5AHX) Drivetrain>Clutch Kits - Multi Our engineers started on theNGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug; Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete