Installing aftermarket parts always voids warranty. Also, more and more manufacturers are creating sealed off engine bays to make working on them harder. It's just physically impossible to block someone to tinker with that type of hardware. If they could find a way, car manufacturers would love to block you from modifying your car.
Come to think of it, Teslas are pretty much impossible to modify, because they're more comparable to the iPhone, a fully integrated hardware and software stack. However, to continue on cars in general, I cannot load my own maps into my car navigation. I cannot load 3rd party maps into the navigation. If I want to upgrade the maps, I need to go to the dealership and pay them an ungodly amount to upgrade them for me.
> more and more manufacturers are creating sealed off engine bays to make working on them harder. It's just physically impossible to block someone to tinker with that type of hardware. If they could find a way, car manufacturers would love to block you from modifying your car.
It's not impossible, it's just not cost effective for them to do so. The cost of sealing the engine bay to such an extent that the end user cannot modify the hardware, while the garage can, adds more cost than the value gained to the manufacturer can justify.
If they could do it in a way that was cost effective for them, there is little reason to believe that they wouldn't be doing it already.
That is not true, there are many car parts I can replace without voiding the warranty. Tires, oil, windscreen wipers, seats, car stereo, the exhaust, the battery, the list goes on. You are perhaps focusing on engine parts only. Apple is not so lenient.
Come to think of it, Teslas are pretty much impossible to modify, because they're more comparable to the iPhone, a fully integrated hardware and software stack. However, to continue on cars in general, I cannot load my own maps into my car navigation. I cannot load 3rd party maps into the navigation. If I want to upgrade the maps, I need to go to the dealership and pay them an ungodly amount to upgrade them for me.