NGK Premium RX Spark Plugs LKR6ARX-P, set of 4. - Model Name: LKR6ARX-P - Quantity: 3 - Brand: NGK - Item Type: Iridium Plug - 91516 Iridium RX plugs have a faster flame spread during ignition compared to conventional plugs, resulting in excellent combustion efficiency and improved combustion. With superior discharge performance and powerful combustion, they maximize engine performance and achieve next-level acceleration. Fuel efficiency is improved, driving performance is enhanced, and you can enjoy a comfortable drive. Suitable for most Daihatsu kei cars. (Price not negotiable)