don't know if any of you all were aware of it but STACK began carrying 52mm gauges as of a couple months ago. Most people know them for their (awesome) clusters and data logging systems but it's nice to have the individual gauges now too. I picked up an Oil Pressure, Boost and Wideband A/F and I can't wait to install! Definitely give them a look if you're in the market for some gauges and don't want to go with the same old thing again. They look great, and more importantly they're accurate! I was surprised to find a GM 3 bar MAP sensor with the boost gauge too.