quote: In terms of a car example, a good one would be if you purchased a new car from a dealership. While it was under warranty, you decided to make modifications to it - add a turbo charger, change cam gears, etc.
quote: You cannot just go buy a random turbocharger, bolt it on, and expect toyota to cover the warranty if you blow the motor
quote: ...Furthermore, if I was to add the TRD parts like their turbo-charger, that would actually still be covered under their warranty. The only catch was that if the non-TRD part was determined to be the cause of a problem, they would not fix that problem, but they would still fix anything else as long as that was not the case.