Never had any problems with Walker/Dynomax mufflers through the years until these Ultraflo's pn17220 3" in/out. Around 2000+ road miles, 10 passes down the 1/8, they seemed to change in sound a while back, not as crisp? On way to work this morning in the van, running great, came to a stop a few blocks away from work and all of a sudden rattling like sheets of metal being jack hammered! Took a look, could see and feel split seams. Great! Picked up some exhaust repair tape and some aluminum...
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