@WashedOutGundamPilot @MaleticResearch Every industry has its paradigm sacred cows man. That's great that you guys are using off the shelf parts when possible too. I figured as much, especially since so much aftermarket stuff is near identical or superior to OEM in a lot of the gasoline powered parts space, often manufactured by the same or competing company who fixed the common point of failure on the OEM design. I forget which manufacturer it was (Bosch maybe?) thay was making O2 sensors which had a bad seal and would corrode after time and heat. Some aftermarket (NGK?) does the same product with a better seal and another wrap seal and it's cheaper.