When I purchased the bottom side grille units, as fitted to cars with spotlights, I noticed that that air could flow freely through the fins. This apposed to the units that were fitted to my car, that are completely closed, thus preventing air from flowing through.
![Question :?:](./images/smilies/icon_question.gif)
My question now is, is there a reason why the original units are closed...are they protecting something? Will I be damaging something now, allowing the air to go through?
Original unit:
New unit:
Jacob