What did you do to your NNBS GMT900 Tahoe/Yukon Today?

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RooTBeeRthe1st

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I’ve had a factory muffler or resonator (forget which one) fail before internally. All the glass insulation?, literally strings of glass started blowing out of my exhaust tip. It started to look like my truck ate a wig and was śhitting it out.
My factory muffler was sounding pretty "farty" chocked up and muffled before I swapped it out.
 

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