does anyone remember a thread that shows some sort of modifying to the 1st gen DSM Bypass? I'm not talking about "Crushing" the bypass. It had something to do with the small hole that is underneath the bypass, where the flange would connect it to the pipe. There is a small hole there and the thread had something to do with drilling out that hole, or tapping it further, or completely closing it, I can't remember what???? what does that hole do and where does it lead, I am asking because I am having some CEL since installing the DSM bypass and I'd like to figure out why?