I've seen the glowing exhaust thing. idling excessively does that. basically what it is, is that you have all that exhaust heat building up, and no airflow to help carry said heat off, so the pipe begins to heat up and glow.
doing this isnt GREAT for your engine, try if you can to keep air flowing over it. overheating it may cause damage you dont even want to realize can be done so easy.
Where does this road go? screw your maps! we're gonna find out the FUN way!
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