Jim Wier (Humble Tinker, RST Engineering) wrote a great EGT gage article in TDR. I don't know which issue. PDF file that I have is too big to attach to this post. I'll see if I can extract the text and downsize the file. The article sold me on the Westach. The white face combo looks great on the S10 pillar and the gage performs flawlessly. Smooth needle operation. At night the gage doesn't look at all like OEM, but that is not why I bought the Westach. It is, to my knowledge, the only compact EGT/Boost analog set up on the market that allows you to keep the handle. I don't care for digital. Some like it. I agree with the post about the 50psi boost option. Genos tech recommended that to me. The "10% rule" seems to work, because I have seen 32 psi on mine, bone stock.