Maybe Ali can get the dude that makes the spoilers to try this one out... need some spare vents to use as master die... I even think Leo Nardo uses your original sets and coats them in CF, as they keep the OEM stuff...The Leo Nardo A/C vents are $1500 !!!!!!! I've been searching for someone that can make them for a couple hundred. I can't imagine they sold many at that price.
Read the thread on sticky interiors. I've re-done my 2 front outside vents and they are like new. Oven off. let soak. rub hard with cotton towel to get the rubber coating off - need elbow grease even with the oven off. Clean with back to black. get all grease off. Spray in 3-4 very light coats of plastic spray paint with rubber texture - Lowes for $8.
Comes out better than new.