Well it appears I have a fuel leak on my '90 s5 pulsation damper so I'm parking it until I fix the leak. Understanding that the damper is a non-removable part of the primary rail, (which must have been a real profit-maker for Mazda), I have an extra rail from an s4 tII that I could do the banjo bolt modification to. Before I rip off the UIM, has anyone tried to use the longer s4 tII rail on an s5 n/a?...the new damper is over 200 bucks and I'm looking to cut costs a bit.