I'm selling my LM-1 kit if anyone is interested. I checked the tail pipe clamp vs the weld in bung, in my case there was a .5 difference. I'm going to install the LC-1 kit. I plan on mounting the gauge in a stock gas gauge housing so I can see it, a/f at the top and oil tank gauge at the bottom. Anyway here is the link to the LM-1.
Roonuts :Innovate LM-1 w/accessories