Are you tired of sluggish acceleration and poor throttle response from your engine? The NGK Iridium IX spark plugs are engineered specifically for performance enthusiasts like you, delivering outstanding power and efficiency where it’s needed most.
With an exceptional ignitability feature, these spark plugs ensure smooth starts and fine-tune your throttle response. The iridium alloy exceeds platinum in durability, boasting a fine wire center electrode that lasts six times longer. Additionally, the tapered ground electrode allows for improved idling and cold-start performance, making these plugs the perfect choice for all driving conditions.
When you invest in NGK, you’re choosing quality that fits seamlessly with modern engines, enhancing fuel efficiency and performance. Take the leap and explore the option of upgrading to the NGK Ruthenium HX plugs for even greater results. Trust in NGK for a reliable, high-performance ride.
Not stock thread pitch. Bought ACDELCO plugs instead and went in just fine. Dont see anywhere stating it’s a different thread.
Im sorry for the confusion.. but I can assure you that the NGK TR5IX runs a 14mm plug with a 1.25mm thread pitch – which is the same size as the OEM plugs. My only thought is that possibly they were boxed incorrectly, the plug should say on it what it is.