I read the roush louvers are removable for cleaning purposes. If that is true, is there a key or some type of deterrent to keep some creep from stealing them while the car is parked?

 

They have allen screws that hold them on brackets which are taped to the window. If someone has the right allen size then they could take them off.

 

I would imagine that just about any louver is removable and if someone is looking for black Roush Louvers and you have them...they can take them. They may need to replace the mounting brackets...but they're probably for sale somewhere (and I know that you can get the installation instructions online -- PDF -- straight from Roush)...as long as you have insurance, it shouldn't be a problem...then again you may have to tell the insurance company that you've added louvers just to be safe...they may not cover it since they don't come "stock" with the vehicle...