Nope. Rule of thumb is nothing voids your Saab warranty unless it can be traced to cause the problem that needs the fix. However, a Cat back exhaust is considered "wear and tear" and does not need to be factory, just like rotors, or pads, etc.sLaabaru said:Will it? I have the intake silencer removed and have a Borla cat-back sitting here. Not sure how friendly Saab dealerships are.