It's incredible how the laws differs so much state to state. It's only been within the last couple fo years that the law for pod filters has changed here in WA. You are allowed to have one if it is mounted properly. Mine has a clamp on it and is screwed into the body of the car (under the bonnet of course lol) and it looks great, performance is better and it is safe and legal.
I have had arguments with the police force plenty of times, and i have rung head office when i get back to work or home, and they tell me that unfortunately every time laws and such change, the information isn't passed down straight away, so the cops are still going on old info when they haven't been told different.
it's funny thou how some members of the public already know the law changes, but the police don't......shouldn't they be the first to know? Then maybe then when they do tv interviews and whatever "stings" operations, they will be working with the correct information.
And people wonder why people with modified cars and performance cars are known as the "street underdogs", or the dangers on the roads......ffs people out there.................grow a brain!!!