Brand new, genuine NGK Ruthenium HX. Latest technology in spark plugs. Compatible with OEM applications. NGK Laser Iridium IZTR5B11. NGK Laser Platinum PZTR5A-15. NGK Laser Platinum PTR5D-10. NGK Iridium IX TR5IX. NGK V-Power TR5; and. DENSO IT16, IT16TT, VT16. For all Boss 260 V8s as found in Ford Falcon BA XR8. For all LS1/LS2/LS3/L33/L76/L77/L98 – 5.7/6.0/6.2L V8s as found in. Holden Commodore, Berlina, Calais, Caprice, Crewman, Statesman, Monaro. HSV Avalanche, Clubsport, Coupe, Grange, GTS, Maloo, Senator, SV300, SV6000, W427. VT, VU, VX, VY, VZ, VE, VF, WK, WL, WM, WN, CV8. If unsure of fit message with your rego & state, or exact make and model and we will confirm. About Ruthenium HX Spark Plugs. Please see listing photos for comparison of Ruthenium HX spark plugs vs existing technologies. NGK Spark Plugs is introducing the latest technology in high ignitability spark plugs to the automotive aftermarket: NGK Ruthenium HXT. Ruthenium HXT spark plugs. The ultimate high ignitability spark plugs from NGK. Modern engines demand spark plugs that provide top performance while enduring the most severe conditions. NGK Ruthenium technology provides maximum durability and performance in newer engines where greater ignition efficiency is demanded. Modern engine designs utilize advanced technologies to create more power with less fuel. This results in greater heat and pressure in the combustion chamber, which shortens the life the spark plug. In response, NGK created Ruthenium HXT, a high ignitability spark plug with outstanding service life. Patented high ignitability DFE and PSPE tip designs provide the most efficient and complete fuel burn of any aftermarket plug, resulting in quicker throttle response, smoother idle and better cold starts. NGK’s Ruthenium alloy technology provides superior oxidation resistance, delivering unparalleled durability and outstanding service life. Patented OEM designs meet the demands of modern high heat engines. Ruthenium HXT contains all the features that enthusiasts expect from NGK spark plugs, including a high grade alumina silicate ceramic, trivalent plated, cold rolled threads, and the highest quality manufacturing and testing. These spark plugs are direct-imported from an authorised NGK supplier in the USA. Domestic buyers are also protected by Australian consumer law.