View attachment 1040503
Maybe the $425 price includes labor? Or is the cost of the "Bioweapon defense" upgrade that adds this filter + a button to the UI? [edit] Yes, that looks right. $425 is the cost to do the bioweapon upgrade if your car didn't come with it from the factory. It includes doing a gateway config change to add the button to the UI (which is a bit pointless, but hey!)
https://shop.tesla.com/product/2012-2020-_-model-s-hepa-air-filtration-upgrade replacing just the filter is less; looks to be $295 at the moment including labor.[/edit]
If you DIY'd yours, did you glue the new filter in? Or just live with some air leakage? Some of the 3rd part ones do seem to add a foam/rubber gasket around the edge that probably helps a fair bit if you don't glue it in.