The tb bypass crap is like a zombie ...can't kill it. I bypassed mine a while ago and I can keep up with all the runaway Prius's now. How do you spell Prius in the plural? Anyhow, using an infrared thermometer,the tb temp dropped 30 0r 50 degrees (having a senior moment) but I posted the results a few months back. I know that engine designers would kill for an inlet temp drop like that (think intercooler). I am now getting 40 mpg and top speed has increased to 150 mph ... take that Prius. Ok, I was talking shit in the previous sentence. Anyhow, no issues yet (SoCal), have been up to 7200 ft and down to 10 degrees in the mountains ... not a real test yet ... but I am headed to Mt Everest, or Nepal, or that Icelandic Volcano maybe all 3 tomorrow.