Yes, I understand that that's how warranty works... I was just trying to say it won't necessarily be as "hassle free" as the mountune products which actually state that they will not affect base warranty. The breather plate will have the exact same risk of a denied warranty claim as any other aftermarket part.
I have worked in warranty for a while for a company that will not be named. This comes up A LOT.
What you said was "you will not be keeping your warranty" which is MUCH different than saying "there is a possibility that your warranty claim will be subject to questioning".
One gets everyone all bent out of shape and makes them think that they just spend $30,000 on their car and a $160 part just threw away any form of dealer support. It honestly bothers me how much you see this on the forums. "I am getting new wheels but will I lose my warranty" "I have an aftermarket air filter but will I lose my warranty" "I put on a catback exhaust but my brakes are now not working but I don't want to take it to the dealer because they will take my warranty away and sacrifice a kitten"
The dealer needs to prove that the modification caused the issue. You will always get the dealer who thinks you are stupid and tries to get out of covering something because they don't want to go through the hassle. This is where an educated consumer can step in and stand up for themselves. THIS is why forums SHOULD be used. To help educate the layman so that they can approach situations with some sort of knowledge.
If you have a breather plate and then have a cracked ringland on an otherwise stock engine, if they give you hassle about it, just explain that it simply isn't possible for that to have caused an issue. If anything, the breather plate will help with performance and reliability down the line by reducing carbon build up and allowing your intake ports and valves to stay clean.