I am looking into buying an aftermarket fuel rail and I was just wondering that if I am using the y8 intake manifold on my z6 head I would need to buy the 96-00 fuel rail. but are they different at all, other than the position of the fuel regulator? would I even need an aftermarket fuel rail for 440 or 450 injectors on 17 to 25 lbs. of boost?

 

bump.. this has to be an easy question

 

Not sure on the 88-91 but the 92-95 and 96-00 rails are different..

 

The differences are between generations. I know that the space between the mounting points and locations of Fuel Pressure Regulators vary.