[damage]

Like I said it is all up to the individual transport officers interpretation of the rules that they are enforcing. Different people read things differently hence why this forum erupts into the odd argument every now and then

I fail to see why it is a common belief that an 8 stack wouldn't pass emissions and based on Rogers comment earlier in this thread someone else has also run this process previously and been successful.

Basically and very simplistically if you look at a modern day plenum all it is is an inlet manifold that brings the eight inlet runners into one common butterfly and air filter arrangement. You still have throttle position sensors, still have map sensors, a MAF isn't altogether necessary although could still be utilized if you had to have one and then still have o2 sensors so why cant it pass emissions if its in the hands of a good tuner.