These guys installed my nitrous setup. It started leaking fuel off the spot where they tapped the fuel rail in cold weather a few months later. I took it up there when it was warmer and they told me it wasnt leaking. DUH! I said its not cold today. Finally they told me to repair it the parts and labor would be $200. I went to another speed shop bought a line for $20 bucks and replaced it msyelf in 10 minutes.