I've started 3D printing carbon fiber/poly blend intakes for the M133. Extremely high heat tolerance. I recently installed one on my '15 GLA 45. Same profile as the big name $texas aftermarket units.

Just add your own K&N filter (E-2999) and 15 minutes of your time. Out the door for under $100.

Sorry, newb on the MB forums, but you can search for me as prematureapex on any BMW site or eBay. Soapbox on nasioc.