I've been looking for a bolt-on, no-fab fuel rail for my '99 engine and was holding out on buying the M-tuned rail to see if the fitment problems got solved. Someone on M.net posted something about a Moss Motors rail. I didn't know they made one and looked it up.

Moss Fuel Rail

Has anyone used it? Does it fit a '99 OK? Any problems? What fittings is it tapped for? 3/8" NPT?

Original M.net thread here:
http://forum.miata.net/vb/showthread.php?t=302153

 

I can tell you that we have sold a ton for 99 engines and the install experience is quick and easy. I've had people grind the required area in 30 seconds with a hand file.

Don't let it worry you... M-Tuned is 3/8npt with a very large bore. I believe the Moss is 1/4npt from what I have seen.

 

Hey Marc what about for a 2003? I was wanting one also.

 

It works on a 2003. You will have to file the middle rail mount on the head a VERY VERY small bit. Complete instructions are included with the rail, and this does not interfer with putting the stock rail back on later.

Enjoy!