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Hopefully I can get some good ideas here. I have a 07 zx6. Has a D&D slip on. If anyone doesn't know what that is its almost identical to the pine box slip on. This year I decided to delete the cat with a MJS header. At first I didn't mind the noise but honestly now it's just plain obnoxious. It's beyond loud and certain points of the RPM are very raspy. The slip on is not packed. It has baffles but their just those honey comb things, there is no finger glass packing. I asked my
Motorcycle shop if there is anyway to pack the mufflers with fiberglass. Can't do it. Emailed D&D, there are no other silencers or adapters to insert in the pipe and they told me they no longer make any more sport bike exhausts. Soooo... Does anyone have any thoughts on how to quit this up a little bit without putting the cat back on or am I just forced to shell out another $600 for a different slip on.
 

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Might be a long trip for that fix jd41.

Assume you don't want to go back stock.
Just looked the new take off I have went to a yamaha 07 R1 don't think that would do ya.

eBay for a used can or yes 600 for a new exhaust only other.
Since you don't want to put the header back on, (that is an option) then it's another can or
ear plugs. (I use them anyway).
 

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I'm running straight pipe on my tiger 1050 and love it, has a huge akro can.
My speed triple 1050 with no cat and real short pipe is very loud.

If your keeping the cat out, then get a large/long can.
Short = harsh.
 

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How sure are you that the slip-on can't be packed? If you ha e the bike tuned and there's room between the baffle and the outer wall of the pipe, then I don't see why you can't throw some FMF 4 stroke packing in there. Drill out rivets, pull off the end cap, wrap the packing g around the baffle and secure it with a small bit of painters tape, reassemble and rivet. Boom, packed exhaust. Now, if you aren't tuned and throwing a bunch of flames out of the pipe I wouldn't recommend this.
 

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Oh, well then you only have a few options.... And they've all been listed here.

1) buy a new pipe.
2) put a stock header back on.
3) post up the pipe for trade.
4) deal with it and use ear plugs.

I personally ride with headphones in all of the time. For starters they help to block out the noise and I also listen to music sometimes.
 

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If you know how to do welding or people/specialist that does it, you can fabricate your own dB killers and install them to lessen the decibels.

It basically looks something like this, the amount of holes determine the sound, so start with less holes and make more if you think you need more decibels. Google for more images/designs if you wish.

You can powder coat or ceramic coat the dB killer black so they're not obvious when installed.


 
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