Review on 🔥 HOTSYSTEM Universal Turbo Boost Pressure Gauge: 2" 52mm Meter -14~30 PSI Blue Digital LED for Car Motor - Boost Your Performance! by John Beltran

This boost gauge (the one I received) came in an unmarked box and was definitely a special for CHINA. But I think it works great! After installation I bought some Lowes brass fittings and a new 1/4 pipe. But other than that it's great, it's very bright especially at night, I used nightshade VHTs and tinted it a bit to reduce glare. Works very well on my XJ and has helped me improve my fuel economy and control my engine (as I am learning to control it properly). These vacuum gauges, if accurate, can help diagnose almost any engine perimeter. See my photos in the app.