As a reputable supplier of performance-driven quality, Champion leverages a century of expertise and excellence to drive spark plug designs that boost the performance of every vehicle they power. Their spark plugs adhere to the toughest industry standards for a better fit and longer plug life.
Overall, these plugs were good. However, one of them had bad threads. I tried it in 3 different positions, and it was a no-go in each. This is especially bad when using them in an aluminum head as I could easily had butchered the threads in my engine were I not careful.