Part upgrades, drop in replacement list, part revised by Tesla

[No CO2]

My question is
Do you know of any part upgrades or revisions to parts (drop in replacements) that are "night and day" difference, and worth the cost of immediate replacement?
Tesla would not notify you of these new revisions, so I ask here.

Two easy examples
Windshield sprayers
If you buy part number 1052887-00-C for $5 each, $10 total...big difference on how it cleans the window

Large Drive Unit LDU, rev U

Also post what year car you have. I have 2013.

 

[gcashiel]

Two easy examples
Windshield sprayers
If you buy part number 1052887-00-C for $5 each, $10 total...big difference on how it cleans the window

when i search for that part, they're being sold for $35 or more online. is it just the nozzle?

 

[xxaarraa]

Good thread, following!

 

[No CO2]

@gcashiel
Yes, it is just the nozzle.
I bought two from the SC for $5 each.

Rear suspension
As detailed here, for vehicles built between approximately June 1, 2013 and January 31, 2014, change lower control arms to part number 1027459-99