AEM30-4407 0-150 PSI Oil Pressure Gauge

This gauge was easy to install. Nice low profile gauge fits great on my A pillar. The best part is the illumination is perfect day or night. Not to bright at night to be distracting.

pricy but good

I thought it would be a good product, was missing pieces according to everything I could find online.

I bought this gauge along with a boost gauge. It is a very responsive gauge. The LED lighting is bright enough to see in daylight, and it has a ambient light sensor to automatically dim (you can test it by shining a flashlight at it). It is very sensitive (which may be a bad thing, the number is constantly flickering), perhaps an analog gauge, or a digital one with a needle might have been better but I like this gauge regardless. The sensor is very responsive as far as I can tell.The picture for this item is inaccurate - it shows the truboost controller/gauge. The digital display in the center is pretty much like that, but the ring of leds around the outside do not 'fill' as depicted; rather it is single LED that is lit at any time.Overall, it's a very good gauge to have in a performance car. Apart from knowing the oil pressure, you can easily tell how warmed up your oil is by observing the pressure at idle. For example, on a cold start, the oil pressure is around 100psi, but by the time the oil has warmed up, it drops as low as 18psi at idle.

Purchased for a 16 sti, works very well after a 3 minutes of starting car. Gave it 4 stars because when I start up my car the gauge reads 0 for 2-3 minutes then slowly increases, 5 minutes later it reads correctly. This only occurs on a cold start. The first 6 months I had the gauge this was not the case, it read high on cold starts then slowly went down, I've had this gauge for 8 months so far and I don't know if it will eventually die soon, unless this is normal after 6 months, overall reads correct wile driving and at idle.