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The ones I installed, boost, EGT, and fuel pressure, have the orange needle, look just like the factory gauges in my truck... the pictures on the website are misleading.
I bought mine last year, but still available with orange needle. Get the blue covers that slip over the gauge lights... looks just like factory lighting color.
You are correct. That project was officially scraped last year, and will likely never happen. Not enough interest, and they were having problems developing a reliable sender that would hold up to diesel.
Isspro is happy to make a custom guage for you. I talked to them about mine and they offered to change the needle color for an extra 20 bucks when you buy the guage.
Call them and tell them what you want. They can make some changes for you.
I guess it depends on who you ask. I've not had any problems with mine (isolator on EV Mech Gauge), although a friend has the exact same isolater, different mech gauge (Diprocal) and his leaked past the isolator and caused his gauge to have problems. No leak in the cab though. I'm still liking the isolator though. Just one more measure of protection. Regardless of what you do, make sure to put a needle valve or similar in to be able to shut the gauge feed off if necessary. It also acts as a snubber, and can extend the life of the isolator and gauge.
Go direct! If installed correctly, you won't experience any problems. Most of the gauges in our power plant are mechanical and have not leaked for 19 years. Of course, we perform preventative maintenance to circumvent this issue.
Might want to consider connecting to the filter housing with fuel line, lots of people end up there eventually.
And yes, use the green bulb cover... I misspoke on earlier reply.
Understand the concern as I debated too. Most important thing is you have a fuel pressure gauge... longevity/reliability is really a secondary issue. If the truck doesn't run, the gauge isn't going to work anyway. Good luck.