I would say it all depends on what you want to accomplish. For instance, I run Issapro Performax gauges. They have max recall and data logging. They also have the ability to monitor 17 different sensors without gauges if you choose through data logging. You also have the option to easily change guages out depending on what you want to monitor at the time. If you are just wanting to watch EGT's and boost then the lower model Isspor's are nice, or Dipricol gauges are pretty good too. If I had to make a choice I would look at what other gauges the company had to offer as well. Rail pressure is the reason I switched from Autometer. You never know when you might want to expand.:rockwoot: