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Loud Thud
Ok I have a really dumb question. When my truck gets hot around 200F. I start hearing a loud thud that sounds like it is coming from the exhaust. Any ideas what it could be causing it. I recently put new 3" single exhaust with a turbo muffler on it.
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1994 F450 7.3 IDI ZF 5 speed NoMAr Spectra Bed
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