Where does this idea of voiding warranty even come from?
Even if you did throw an aftermarket turbo in, they're not going to "void your warranty" and refuse to fix a leaky moonroof. They can only refuse to repair a component under warranty that is directly affected by an aftermarket piece you put in.
Even if you did throw an aftermarket turbo in, they're not going to "void your warranty" and refuse to fix a leaky moonroof. They can only refuse to repair a component under warranty that is directly affected by an aftermarket piece you put in.