My friend just bought a new fuel rail for his d15. It fits good and all. but this one thing at the end of the fuel rail. it screws on to the fuel rail fine but the hole on it the supposed to hook up to fuel line for the fuel filter doesnt match up. on that bolt lookin thing that hooks up to the fuel rail has a hole at the end of it instead of on the side of it to hook up to the fuel line. what is that bolt thing called? and how can yall help me on this