yamahaha Posted April 6, 2015 Share Posted April 6, 2015 I've got 1200 kms and noticing my exhaust is getting some bark to it. Could barely hear it before. Does Yamaha stuff them with cotton batten? Looked around for exhaust leaks but none present. Link to comment Share on other sites More sharing options...
rotaryryan24 Posted April 6, 2015 Share Posted April 6, 2015 My stock exhaust did change tone after a some time, it got deeper, slightly. after a thousand miles or so it did stop changing tone. There is no packing in the muffler at all, just a cat and three chambers. You do or don't Then your dead. To order a tail tidy click One-off-fabrication.myshopify.com Link to comment Share on other sites More sharing options...
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