I installed them yesterday. Everything they say about them is true, I was pleased. But as I was finishing up I realized I forgot the anti-seize

So I went back and took each one out again. As I pulled out one of the boots out the wire came out of the f*ckin boot

I had to take the b*tch apart to put it back in

I was so pissed after paying $160 for them. Other than that I'm happy with them. Oh yeah, when u install them make sure u only put the spark amplifier on HAND TIGHT.