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I recently modified the exhaust on my Fury, and wanted to share my experience with anyone looking to make their stock exhaust a little louder.

I read of others drilling out the baffle and honeycomb (catalyst) material in the stock exhaust and need thank those folks for their information. They recommended using a 1/2 inch drill on the baffle (rear of exhaust), and a 1" hole saw on the honeycomb material (through the muffler intake).

I followed those guidelines and here's what I found.

1. There seems to little reward in drilling out the honeycomb catalyst material. I drilled the baffle first, and saw little change in sound after drilling the catalyst material.
2. The size of the hole in the baffle hugely effects the sound you get from the exhaust. (I know... dua right)

After riding several days with a 1/2 hole in the baffle, and being very pleased, I still wanted a little more volume. therefore, I enlarged the hole in the baffle to 3/4 of an inch. The sound from the exhaust is much deeper and a little louder now. Much nicer IMO than the 1/2 hole.

Eventually, I will go with an aftermarket exhaust. But I hate to buy an early design and have something really cool come out after the exhaust market matures; so I'm waiting.

Bill :D
 

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Anyone reading this, I plan on getting rid of my OEM muffler in which I cut into 3 parts, cut out everything inside and ran 1 1/2" copper pipes and re-welded/re-painted with high temp flat black paint.

Basically, I'm getting the Viper Exhaust, and would like to trade my modified muffler for an un-molested OEM muffler... just in case I get shipped overseas.

I'm thinking $50 should cover the deal, or I will do a straight up trade if you pay for shipping both ways ;)

I ship you the box, you swap out the mufflers and you ship me the OEM unit. All the works done for you, just a 1/2 hour down time to swap the mufflers :D

PM me if your interested.
 
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anybody have any videos on how to modify there stock exhaust? I am a visual kinda guy! =) Thanks!!
 

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You don't need a video bro.

Get on your knees... OK everyone, stop the smart a$$ thinking as I know you'll think of something to say. LOL

Anyway, get on your knees with a flashlight and look into the end of your muffler. You will see two teeny tiny holes about 6 inches in.

Drill them both out to 1/2 inch. You may need a longer than normal bit though. I did. You can try to start smaller and go bigger after testing, but I drilled them both out to 1/2 inch and i'm still A LOT quieter than any bike with custom exhaust, and will be drilling them out even more very soon.

Enjoy.
 

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Modified Stock Exhaust

If you make this mod do you have any back pressure problems or running rich or lean problems?



I recently modified the exhaust on my Fury, and wanted to share my experience with anyone looking to make their stock exhaust a little louder.

I read of others drilling out the baffle and honeycomb (catalyst) material in the stock exhaust and need thank those folks for their information. They recommended using a 1/2 inch drill on the baffle (rear of exhaust), and a 1" hole saw on the honeycomb material (through the muffler intake).

I followed those guidelines and here's what I found.

1. There seems to little reward in drilling out the honeycomb catalyst material. I drilled the baffle first, and saw little change in sound after drilling the catalyst material.
2. The size of the hole in the baffle hugely effects the sound you get from the exhaust. (I know... dua right)

After riding several days with a 1/2 hole in the baffle, and being very pleased, I still wanted a little more volume. therefore, I enlarged the hole in the baffle to 3/4 of an inch. The sound from the exhaust is much deeper and a little louder now. Much nicer IMO than the 1/2 hole.

Eventually, I will go with an aftermarket exhaust. But I hate to buy an early design and have something really cool come out after the exhaust market matures; so I'm waiting.

Bill :D
 

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Hey guys I just did this mod to the stock exhaust and it's sounds very good. Not as good as an aftermarket exhaust. But I did to follow the write up from before. The only different thing I did was used a 3/4" to 1" remer. And reamed it out to the welds. Just needed to be a little louder till I get more funds for a real exhaust system.
 

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Anyone notice an increase in vibration at higher speeds (above 55) after doing this? I only have about 750 miles on my Fury now and did the mod before my last 200 mile ride. I did alot of riding between 60 and 70 and that's when it pops up. Since I'm still becoming familiar with the bike I'm trying to establish if it's just me and the vibration was always there and normal, or was it this mod? Or is something else wrong? It's nothing crazy, but feels less smooth than I remember or maybe should be, and goes away when you pull the clutch in. I've always noticed some vib when accelerating, is that normal on a shaft drive?
 

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I've never noticed any vibration that isn't what you would expect from a 1300cc motor on two wheels. Generally very smooth.
 

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just take off the exhaust and weld on a set of glass packs and put a heat shield on them lol, now that would be a set of loud pipes!
 

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