So I went to loosen my right side exhaust bolts so I could blow out the sand that had lodged itself between the pipe & bracket, and the rear mounting bolt just spins. The bolt was tight, I broke the torque, now it just spins without backing out. Doesn't seem like a stripped bolt to me. Anyone else run into this, and what's the fix? Is the exhaust shell threaded, or is there a nutplate inside the exhaust?