For the last 15 years or so, I've been a big fan of Taylor Spiro-Pro plug wires. I really liked the fact that they came with a lifetime warranty. But I have a set that have failed, and now arc all over the engine bay. Imagine my surprise when I called Summit Racing to have them exchanged, only to learn that Taylor now only offers a 90 DAY WARRANTY You can read the actual warranty here: http://www.taylorvertex.com/hp/warranty.aspx So I hereby retract ANY recommendation for their products!!! I have sent them an email asking them to exchange the set that I have, because I still have the piece of paper from the box that says mine came with a lifetime warranty. We'll see if they at least honor that. I guess the good ol' lifetime warranty Autolite plug wires are looking better. At least they only cost around $20.