Hey guys, I have a Nur spec full cat back on the car. Since install i have had this annoying rattle. Its not either of the heatshields around the old resinators or muffler. I thought it was them but someone was standing outside the car and they said they heard it from the front more. It only happens at low RPMs Is there another shield around the last cat? Is that it? Any other guys with same issue. I havent had time to lift the car to check it out so if anyone could let me know what it is before hand it would save a lot of time. Any NUR guys have same prob and fix? Please let me know...it makes me sound like a rice bucket with the damn rattle.