What is the best thing to do with the 4 (two pairs) of things that run into the DPF? On an unknown brand of DPF delete pipe, there are two ports, I am assuming to put back in the two tubes that are for EGT? I am 99% sure the only things that come out of the filter are a pair of pressure difference sensors and a pair of EGT probes (?). Should I tie off all 4 (but then the ports on the pipe?) or plug the two tubes back in like I've seen on another truck. Will this give any kind of useable EGT reading to the scan tool or does a calculation have to be made for accuracy. Thanks!