The reason the gauge is after the filter is so nothing gets lodged in the gauge from the bottle. One of the components might have the wrong fitting on it.

 

problem with fittings not, well fitting. When we try to set it up as shown in their diagram (bottle nut, pressure gauge, 5 inch line, nitrous filter) stuff doesnt fit together (fittings wrong sizes.)

If we lay it out with the 5 inch line coing out of the bottle, then filter, then the pressure gauge it goes together. ANyone have this problem? dont se why we should read pressure as it comes after the filter.

 

you got the wrong manifold for the pressure gauge... it should be a 6AN before the filter and it's 4AN after the filter... mine is on before the gauge..