I just finished putting together my shiny, SS 1.5" RIMS tube and I'm not sure if I should pick up 1.5" muffler clamps or 1.75" in order to mount it to my stand. Thanks!
I have a 2" clamp here that measures 2.17", meaning that it will fit perfectly around something with an OD of 2.17". Putting it around something that's 2" is a sloppy fit. So, you may need a clamp that's sized slightly smaller than the OD of your tube. Your best bet is probably to just bring your RIMS tube to the store and try a few different ones.