> Change it all you want, but don't expect Tesla to fix your car once you've messed with it yourself.

There are laws regarding car warranties that would make Tesla's behavior illegal, if they voided your warrenty.

Cars have been around for a long time, as has the laws regarding them.

People have a right to repair their car, this is reflected in the law, and unless the specific modification to the car is directly related to the "failure" that you are making a warranty claim on, it would be illegal for Tesla to void the warranty.

Just because a company is a tech company does not mean that they can get around laws that have existed for a long time, regarding this stuff.