No i mean the warranty on the car.
If i install an aftermarket exhaust my dealer will know it when he will check the car on the computer (he can see the temperature, exhaust flow pressure etc...) and so if i get a damage on the engine for exemple they can say it's due from the exhaust flow not adapted to the vehicle etc...
So yes it is defendable with juridic help to prove that the engine blowed off for an other reason than the exhaust, but i don't want to spend my time on that if it will happen, i have an exhaust from lamborghini original parts, price difference between this one and other aftermarket is not so big on my case, quality are amazing and love the sound, so this is it.