The heat might not be such an issue... most cars, I can hold my hand in front of the exhaust pipe for as long as you want to run it and it just doesn't get that hot.
Older cars, on the other hand, with carbs and no cat... those things got warm.
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
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