These are prohibitions against selling, offering to sell, or installing any part or component whose principal effect is to bypass, defeat, or render inoperative a motor vehicle emission control device or element of design.
Saying a turbo Principal is to defeat, bypass or render inoperative IMO is impossible, not any different than saying a Modded pump defeats, deletes, or renders the SCR/EGR inoperative.
Now grid heaters are emissions related, removing them would violate CAA Law, but never has any company been served for Grid heater deletes or fine's.
