This is an air filter to be placed inside the air cleaner box in the bonnet of a Mazda CX-30. I have a diesel car (DM8P), but I accidentally ordered the wrong one and couldn't install it. I took it out once when I tried to replace it, and once for the listing photos, but otherwise it's new and unused. - LX 5923 - Brand: MAHLE - Model: LX 5923 - Type: Air Filter Thank you for looking.