I've modified Jeep and Mitsubishi vents for my 1995 Miata and the ability to rotate the vents was always sub par, or the gaps are not even all around on all 4 vents. It's a meticulous DIY.
Vision Tuning vents fit and lock I to place great, better than the retrofits I've done. They also rotate smooth and have a very satisfying 'snap' when they close all the way, letting you know they're off. That's a feature I didn't even realize I wanted until Vision Tuning. My only criticism is the texture; it contrasts the rest of the interior so much that I want to sand them smooth and paint them to look more like the Jeep/Mitsubishi examples. Overall 5/5 I'm really impressed but the surface texture thing loses 1 point IMO. I would definitely recommend these, and will probably buy another set for my brother's 93 Miata.
