I just want to know what this hole is for? I thought it was for optional fuel pressure gauge but VMS claims they've "never put a hole for a fuel pressure gauge on one of those fuel rails. The hole in the middle of the rail is to hold the factory injector wiring harness." Is that true? because to me it just looks like it's not drilled all the way through and other fuel rails put the option of a fuel pressure gauge on the rail.

 

There is no injector wiring harness attachment point at that position on any "D" series application. It would in fact be for a pressure source, whether it be used for a gauge, fuel pressure sending unit for an interior gauge, or a fuel source for a wet nitrous kit. All you have to do is drill through it and the 1/8" NPT threaded port is usable.

 

Thanks that's what I thought. It's pretty crappy that VMS doesn't warn customers about that. I have a table vice and a hand drill I could drill it out the rest of the way with but i would really need a drill press to do it carefully without hitting the threads or the bottom of inside. The fuel regulator hole also looks half drilled out, like not as big as oem hole. I think I'm just gonna return it and just drill out a pressure gauge hole on my oem rail or get a golden eagle brand rail.

 

VMS products are the cheapest you can find on EBay... there is a reason why.

 

Nope Jackspania Racing haha! They done sold me a K series fuel rail kit and the kit had a defected fuel rail that leaked from the center feed, the AN fittings had rubber O rings to seal haha those leaked lucky I was able to use Earls Conical fuel line seals and made the fuel lines work but after a few emails they admitted they had a bad batch of fuel rails and refunded me. I just used JB fuel tank puddy and sealed the center feed it was out of sight anyway.

 

OK wunfstgsr ... you got me there. JackSpania DOES make a bunch of garbage... they are definitely giving VMS a run for their money for the title of "Junkiest **** Online".