The design is easy to print, you do not need any additional tools. You can print everything in one material. I designed it in terms of PETG, printing with ABS the holder will not work because this material has a different level of shrinkage, keep this in mind.

IMPORTANT! In order for the whole structure to work properly, the airflow control bar must be removed.

The car underwent a facelift in 1990, my version is for cars up to 1989.