Filling up your car is really pretty easy, but there's one major annoyance - where did Mazda expect us to put the cap? Dangle it off that tail so it'll scratch the paint? Nope. This is an easy solution to give you a perfect spot for it. It installs in the underside of the filler lid and gives you a perfect place the hold the filler cap - just hook it over the edge and it'll stay there until you're done filling up. As with all of our 3D-printed parts, this is printed out of Onyx, a carbon fiber infused nylon that's resistant to many things including gasoline.
Note that fit is tight on an NC, and many (most? all?) NCs have slightly bent fuel filler lids. You'll need to be sure your lid is flush to the body before trying to install this, but unless there's real damage it's an easy fix. Check out our instructions for how to fix this, as well as how to install the gas cap holder.
This will only fit factory fuel filler doors, it likely won't fit non-original fuel filler lids - if your fuel filler door is chrome, whether aftermarket or Mazda, this almost definitely won't fit.