We've installed a few sets.
Here is a metaphor for a comparison between them and Isspro, Dipricol, Autometer.
Isspro is like Charmin ultra soft 2 ply, Glowshift is like Dollar Store Single ply... it gets the job done but is not near as nice or reliable.
LMAO where does Dipricol and AM fit in there :hehe:
I've got one of their fuel pressure gauges. No problems so far. Has had a rough life in a big truck.
Only thing is, the sender needs a ground wire to the engine. Doesn't ground through the fitting where it screws in.
I'm a little confused on what ur saying about the ground wire. please explain