I just bought a 2005 LGT wagon. The car has a aftermarket catted downpipe with the bung plugged. I guess my real question is, the previous owner removed the EGT probe and plugged the up pipe but there is no resistor in the pigtail connector-will this create an issue with and AP with a stage 2 91 oct tune? I have no CEL now, which leads me to believe that it has been tuned. This car is a dog down low but I don't want to lose the current tune if it needs to be returned to it.
I also have a perrin pulley, turbo inlet, and afe filter in stock airbox
