[Your average e90]

hey guys,
this is for my new York members
car e90 2008 335xi STOCK!!
I am planning to do the jb4 as my first mod, but as I researched the jb4 constantly erases codes which is good for catless down pipes
however I am not going that route as yet but I want to install the jb4 and I would like to know will my car pass nys inspections with a jb4 plugged in or I would have to remove it everytime, or can I put it in such a mode where its "off" ?