Soon we won't have to worry about voiding the warranty or doing mods for that matter lol
Proposed Restriction Would Make It Illegal To Modify Your Own Car - EngineLabs
They've been trying to do that for years now, but it will never happen. The fact is, when you purchase a car, it is yours, and you can do whatever the hell you want with it(Court cases have ruled that). Sure, the Manufacture can void your warranty, but that's about it. The same thing has happened with the black boxes being put into cars. They want to make it illegal to remove them, but every time it comes up in court, it's ruled that once you purchase a car, it's yours, and you can take whatever you want out of it. You can also do whatever you want to your car, as long as it doesn't infringe on a copyright or violate any local laws.
To the OP, if you want to keep your warranty, and not be hassled to death, then leave it alone and buy a project car to mess with. If you do something to the car, and the Manufacture decides to violate your warranty, you will have years wrapped up in appeals anyways(not counting lawyer fee's). Years ago, when the Subaru STI came out, they were offering owners a free rally style track experience, but all they were doing was tracking the VIN numbers from the people that showed up, then instantly voiding their warranty when they tried to use it. A few other Manufactures have also tried that over the years, but i'm pretty sure court cases got that shut down. Manufactures have also been known to send reps to racing events to document the VIN's of cars participating so they could flag their warranty. It's shitty practice, but at the end of the day, no Manufacture wants to pay for warranty work, and most of the time, Dealers only get reimbursed for the part, not the labor.