Ok, I finally got to try out @
Viscontis new intake bog fix......and I can finally say that the car can now handle traffic!!! Once again, John comes through.
Ultimately, I've decided to return the intake. Having John fix the issue is great and all, but I need a unit that runs correctly on a stock tune. In the event I actually have a real engine problem, and I take it in for warranty, I don't want to pay a diagnosing fee only to have the tech hand it back and blame the intake. Something those of you with issues on stock tunes should think about as well.
Hopefully I won't have anything to add to this thread when I get a different intake!