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Not sure if this has been posted but I went on my Tesla app today randomly, under service I was was given the option to schedule the CCS retrofit for my 21 M3
I scheduled it and got the the estimate
You will probably have to use a gun metal plasti dip
Plasti Dip Performix 11221-6PK Gun Metal Multi-Purpose Rubber Coating Aerosol - 11 oz, (Pack of 6) https://www.amazon.com/dp/B00E975T74/ref=cm_sw_r_cp_api_glt_fabc_M7FKNX8BH789JDC4KBR8?_encoding=UTF8&psc=1
Got it from amazon
Shenwinfy for Tesla Tailgate... https://www.amazon.com/dp/B09BV19WFX?ref=ppx_pop_mob_ap_share
Seems like good quality, no complaints