I personally believe it all depends on your dealership. If something happens with the exhaust or something related to the exhaust I know its not under warranty because I changed it, but if something happens like the radiator blows I believe in standing my ground. Now the dealership can't say that its the vents because the magnaflow has it and they can't say that its the DPF because its on there, I just hope they don't break it open, hahaha