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Original exhaust system giving me the putt-putt sound, believe it's time to go. Looks like GM still makes the cats but not the tailpipe and muffler - unless anyone's had any luck sourcing that assembly? New, that is....
I need to wake up, sorry....99 Yukon SLT 5.7. Stock muffler shows part number 15742010, which comes up discontinued in all the usual online GM parts sites.
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