I bought these injectors (JL Machine 7x.010) last week for my wifes truck. I knew her truck had injectors in it but didn't know what size. So this is where I started. They were a bit bigger than what was in there but I was looking for a bit more. These are in the truck now and have about 50 miles on them. I'm going to jump up to 7x.012's. $400 shipped and I need cores. Or $475 with no cores shipped.