Happy Fourth of July to my fellow GMFS. I want to up grade the spark plug wires on my 2006 Sierra 4.8, I have replaced them once already but want to up grade to something better then the 7mm factory wires. I used MSN wires on my 2002 Silverado 5.3 and didn’t seem much different then the factory wires. I wanted to see what wires some of you recommend, thanks!