somebody needs to start 3d printing them or resin cast /mold. Hell dorman makes/sells replacement composite intakes for everyone.. OEM has been doing them for a while now...!! a resin airgap would be ultimate//virtually no heat transfer!!
shoot someone with a home 3d printer can make clips/door /window/guides/rear seat cams ect.... just need a good one to scan... todays tech can outweigh a 3rd world country melting soda /beer cans for a intake...