^^^^I'm always amazed that people fall for gimmicks like that. There's no way vehicle manufacturers could afford two glass jars and some tubing added on to the price of a new car, not to mention all of the engineers they have working on improving fuel economy losing their jobs.
To think. VW could have avoided paying 25 billion in penalties. Why create software to cheat emissions tests when they could have used parts from their mom's basement? The man is a genius and VW should make him their lead engineer.