Hey everyone. I just got my 02 bung installed, and I was wondering where you guys run the cable from the 02 sensor to the LM-1 box? Did you snake it to the engine bay, and then in through the firewall? Any examples or suggestions are much appreciated.

Also, is anyone running the heatsink, or bung extender with their LM-1 02 sensor? If so, was it a necessity, or precautionary?

Thank you