I'm setting up a Mega Squirt system on an 8 stack injection. The headers are 4 into 2 to the exhaust side pipes on a coupe. There are 4 individual side pipes, 2 per side. I understand for an accurate reading the O2 sensors need to read a mix of all cylinders. In this case there would need to be 4 sensors on the 4 to 2 cylinder collectors. Am I heading the right way or is there something else a little less expensive ?
