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Dumb qusetion about SE Dyna mufflers
Thread Starter
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Cruiser
Joined: Sep 2008
Posts: 247
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From: Texas
Dumb qusetion about SE Dyna mufflers
I have a 09 Dyna Low Rider and did not like the mufflers. I located a set of SE Dyna Low Rider mufflers (had the entire exhaust) from an honest person and got them set to the house. I installed only the mufflers. Sounded just like the stock mufflers. 
So on one of the bike nights at a local restaurant I heard a SE Dyna that had the stock SE Dyna exhaust and it sounded great. Loud but not to loud. He told me " take the packing out of them" "it will sound better". So tonight I took the mufflers off and a part (three rivets) and took the fiberglass packing out. I also noticed the baffles had Catalytic converters. Exhaust was not from an emission state. Now my bike sounds better than his did. 
Questions:
Does all the SE factory bikes have CATs'?
Was this normal? So much packing it was to quiet.
So on one of the bike nights at a local restaurant I heard a SE Dyna that had the stock SE Dyna exhaust and it sounded great. Loud but not to loud. He told me " take the packing out of them" "it will sound better". So tonight I took the mufflers off and a part (three rivets) and took the fiberglass packing out. I also noticed the baffles had Catalytic converters. Exhaust was not from an emission state. Now my bike sounds better than his did. Questions:
Does all the SE factory bikes have CATs'?
Was this normal? So much packing it was to quiet.
Road Warrior
Joined: Dec 2008
Posts: 1,530
Likes: 1
From: Upstate, SC
I have a 09 Dyna Low Rider and did not like the mufflers. I located a set of SE Dyna Low Rider mufflers (had the entire exhaust) from an honest person and got them set to the house. I installed only the mufflers. Sounded just like the stock mufflers. So on one of the bike nights at a local restaurant I heard a SE Dyna that had the stock SE Dyna exhaust and it sounded great. Loud but not to loud. He told me " take the packing out of them" "it will sound better". So tonight I took the mufflers off and a part (three rivets) and took the fiberglass packing out. I also noticed the baffles had Catalytic converters. Exhaust was not from an emission state. Now my bike sounds better than his did.
Questions:
Does all the SE factory bikes have CATs'?
Was this normal? So much packing it was to quiet.
So on one of the bike nights at a local restaurant I heard a SE Dyna that had the stock SE Dyna exhaust and it sounded great. Loud but not to loud. He told me " take the packing out of them" "it will sound better". So tonight I took the mufflers off and a part (three rivets) and took the fiberglass packing out. I also noticed the baffles had Catalytic converters. Exhaust was not from an emission state. Now my bike sounds better than his did. Questions:
Does all the SE factory bikes have CATs'?
Was this normal? So much packing it was to quiet.
Removing the fiberglass packing does give a throatier exhaust. That's what I did with the 09 Street Bob muffs I put on my bike. These muffs are essentially identical to the straight cut CVO Dyna muffs except they don't have cats in them.
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Cruiser
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From: Texas
Nice to know this. It was a shock to find the cats in the muffler, that is why I just changed out the mufflers and not the whole exhaust. I should have looked at them better the first time. I would have removed the packing from the start. I did think about cutting out the cats but did not see the need yet. Maybe someone makes a better baffle for them.
Road Warrior
Joined: Dec 2008
Posts: 1,530
Likes: 1
From: Upstate, SC
Nice to know this. It was a shock to find the cats in the muffler, that is why I just changed out the mufflers and not the whole exhaust. I should have looked at them better the first time. I would have removed the packing from the start. I did think about cutting out the cats but did not see the need yet. Maybe someone makes a better baffle for them.
Thread Starter
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Cruiser
Joined: Sep 2008
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From: Texas
Does anyone make baffles for these mufflers? Been looking but have not located any.
Road Warrior
Joined: Dec 2008
Posts: 1,530
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From: Upstate, SC
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Road Warrior
Joined: Dec 2008
Posts: 1,530
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From: Upstate, SC
You may just want to take a punch or chisel and "clean out" the cats, i.e., knock out all the substrate material. (I had a muffler shop do that to the dual cats on a 76 Ford Torino I had with a 351 Cleveland. The air pump malfunctioned and the cats melted and plugged up the exhaust. They "cleaned out" the cats, put 'em back, on and she ran great--though with no more "rotten egg" smell from the exhaust.)
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Cruiser
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From: Texas
Yes. Read all about it. They are LOUD and sound good, but I eventually got tired of them and went back to the stock baffles without the packing.
Last edited by Gunfighter13; Apr 15, 2009 at 01:51 PM.