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My 2001 GSXR 750 came with a Yoshi slip-on and I took it apart tonight to see what the internals looked like. I removed both caps and pulled out all the steel wool and the thick fiberglass packing material. The fiber glass was REALLY thickly packed in there. THe bike has always been too quiet for my liking as compared to the Akras on my Ninjas....
My intentions are to take some heavy duty aluminum foil to wrap around the center tube and secure it with some hose clamps. That way the heat doesnt affect the outside of the can. By doing this it will essentially make it a straight through pipe.
Anyone with experience with this sort of thing and how loud I should expect the pipe to be?? I am looking for more rumble but not be too obnoxious...