Quote Originally Posted by mooshie View Post
Technically exposed filters are illegal, they must be in a closed box and properly secured of course with all usual hoses attached as per standard.

All depends on whether the cop at the time can be bothered to ream you for it
OP Listen to Mooshie, he said it exactly right!

But he's 1,000 times right about it all depending on the cop you get at the time. Even if you do it properly (put it in a closed box, make sure it doesn't rattle around and it's properly mounted) the cop may still screw you around.