AL GUY Posted April 17, 2008 Share #1 Posted April 17, 2008 Here are some pics of an RSV muffler that I opened up. If you look closely at the rear section you will see tha drilling holes in the rear cone does nothing if you don't also drill the second plate. I can post more pics if anyone wants a specific view. AL Link to comment Share on other sites More sharing options...
az1103 Posted April 17, 2008 Share #2 Posted April 17, 2008 I gather you were trying to find out why the usual "muffler rape" didn't produce any worthwhile improvements in sound ?! Link to comment Share on other sites More sharing options...
Gold Rush Posted April 18, 2008 Share #3 Posted April 18, 2008 Is That a 1st Generation muffler? I'm guessing it is...... I drilled holes in the rear place of my '00 MM limited and there was a MAJOR change in the sound!!!! I agree drilling the pictured muffler would not produce any change though... Link to comment Share on other sites More sharing options...
AL GUY Posted April 18, 2008 Author Share #4 Posted April 18, 2008 I was just curious but I don't see a practical way to open up a large chamber that would be needed for a deeper tone. I haven't heard any of our bikes with modified mufflers but I would suspect that they are louder but without the deep mellow tone that I like. My stock mufflers have the perfect tone but I wouldn't mind a little more decibels. If I ever modify my mufflers I will attack the inside of the chamber that has the wire mesh and get the fiberglas packing out. AL Link to comment Share on other sites More sharing options...
AL GUY Posted April 18, 2008 Author Share #5 Posted April 18, 2008 The number stamped on the muffler is 4xy-1. I believe this corresponds to the number for a 1999 RSV according to the service manual posted on this board a 4xy-2 would be a California model. Other years may have different mufflers. AL Link to comment Share on other sites More sharing options...
Moped Posted April 18, 2008 Share #6 Posted April 18, 2008 Appreciate the pictures thanks for the effort. Link to comment Share on other sites More sharing options...
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