Well I have to replace one of my fuel rails which has finally started to leak. I over tighten it and now it leaks. Can someone tell me why I see prices anywhere from 250.00 for Aeromotive or FAST rails and as low as 73.99 for a rail kit made by Performance Products? They look basically the same as far as the rails go so why such a big price difference? The leaking one is from Speed Inc and has been working great for a couple of years now. Is there something special with the Aeromotive or Fast fuel rails that the others dont have to justify spending an extra 150.00?

 

The cheaper brands tend to use NPT fittings in the ends of the rails, whereas the more expensive (FAST and Aeromotive) use a straight thread o-ring boss. Other than that, I'm not sure, but I use the FAST rails because I hate NPT fittings, especially when going into aluminum.