go to either the mazda6tech.com or mazda6club.com both have stickies about this topic. But yes and no. it will of course be void on the part you replace however they cannot void your whole warranty ecause of an intake but if the intake causes a problem in the engine like say hydrolock its your problem not theirs but say your door fell off because of bad hinges they cant say of you have an intake this wont be under warranty