Purchased from:
https://www.vft-opitz.de/
Point of contact: Christian Opitz (good and attentive communication)
Tricky fit - took quite a few hours especially as I did not want to scratch the new CF airbox. I had to remove the engine mounts and jack up the engine under the oil pan, then tilt the engine to the right to provide just enough space to remove the factory aluminum box and squeeze in the new CF box, as it is quite a bit bigger than stock. Also required a small modification to the throttle cable bracket and trimming one of the coolant lines. Also requires a cone filter (I used K&N) RU-2430 and made two aluminum brackets to support the AFM. The factory air filter box will not work with this CF box.
Benefits: 13lb weight saving and more airflow to cylinders 5 and 6. I took the car for a 10-mile blast after the installation, and it drove great.