R Crew Racing

Honda D-Series 96-00 ONLY will use all three springs

Perfect length for EG/DC/EK

88-91 EF Civic

Digital inputs 4 Speed inputs

NGK K20 RUTHENIUM HX SPARK PLUGS pulley R Crew RacingHigh performance ignition plugs. Ruthenium HX plugs are designed to deliver exceptional ignitability in todays high efficiency engines, with a 0. 4mm Ruthenium fine wire center electrode and a 0. 8mm platinum ground electrode that allow for consistent combustion even in extreme lean or rich conditions. THE LATEST INNOVATION IN PRECIOUS METAL SPARK PLUGS Modern engines demand more power while using less fuel, shortening the life of traditional iridium