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General Category >> Rubber Side Down! >> Muffler question
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Message started by Oldnewguy on 09/10/09 at 12:22:39

Title: Muffler question
Post by Oldnewguy on 09/10/09 at 12:22:39

I am thinking of changing my exhaust this winter. What about the $20 slip ons from JC Witless? Any thing that I should use?

Title: Re: Muffler question
Post by Serowbot on 09/10/09 at 14:20:10

They're a lot more cheaply made than Harley mufflers.... will probably blue fast, and burn out quickly... and be very loud...
I'd recommend Harley take-offs...

Title: Re: Muffler question
Post by FreeSpirit on 09/10/09 at 14:42:44

There's a video of a girls savage on YouTube.She has a universal muffler from JCW that sounds good.Not too loud,but good.
Dont know how much it cost though.Her husband works on hers.
And Ive mentioned it here but honestly cant remember if anyone commented on it.

I'll find the video link and put it up.

But I think the Harley Dyna muffler is pretty cheap.Or you can get them pretty cheap.
So Serowbot's suggestion is probably best.
But I did like the sound of the universal one ;)

Title: Re: Muffler question
Post by Oldnewguy on 09/10/09 at 15:54:46

About what am I looking at pricewise for the Dyna?

Title: Re: Muffler question
Post by FreeSpirit on 09/10/09 at 16:11:52

I'm not sure but seems like the guys get them pretty cheap from what I've noticed in the forum.

I would try calling a Harley place and see if they have any they've swapped out.
Or even a local Bike repair shop that works on Harleys and see if they have any.And get a price.

Or ebay!
I'm just trying to give you some suggestions until the guys notice your post ;)

Title: Re: Muffler question
Post by 4carbcorvair on 09/10/09 at 16:40:42

I have recieved lots of compliments on my Dyna muffler. It gives it a little rumble without being obnoxiously loud. I picked up a complete new take-off Dyna exhaust, including header pipes, two mufflers, all clamps, heat shields for $10 on eBay. Shipping cost me much more than the exhaust. I gave my brother the second muffler for his 250 Suzuki.

Title: Re: Muffler question
Post by Gort on 09/10/09 at 16:58:48

You can increase the loudness of the Dyna. Using a 5/16" dia., 12" long drill bit and entering through the outlet of the Dyna, drill a hole at the 12, 4 and 8 o'clock positions, through the baffle. Drill one hole at a time and test to see if it is loud enough. I settled for 2 holes.

Title: Re: Muffler question
Post by serenity3743 on 09/10/09 at 17:33:01

782F2D3E2E2F233E3A2D253E4C0 wrote:

Did either of the header pipes fit the Savage? With or without modification? Just curious. :-?

Title: Re: Muffler question
Post by Oldnewguy on 09/10/09 at 17:41:20

I just checked real quick on ebay and there are a ton of harley dynas for sale. What about pipe size, etc? Do they all fir or do they all have to be modified?

Title: Re: Muffler question
Post by Gort on 09/10/09 at 17:47:56

This has been a confusing issue for a long time. If you do a search on this site, you should come up with a great deal about it. Apparently there are a number of HD mufflers that will not fit easily, and many members have had to make alterations to their Dynas to make them fit, so perhaps all Dynas are not the same. I have been lucky and my muffler fit on with little effort and no alterations to anything. It does not leak. The only info I can give you are the numbers on the side of the muffler:

64941-01

Title: Re: Muffler question
Post by BurnPgh on 09/10/09 at 18:02:44

Make sure you dont get anything with a crossover port. And some of the super new ones have catalytic converters but I've only seen two or three of those on ebay. I dont know if those ones would work or not but i wouldnt spend the money to find out. There are two types of muffler mounts , tab and rail. Get the rail mount type. You'll need to cut up and fold a soda can to shim between the Muffler ID and header OD. And a better exhaust clamp.

Title: Re: Muffler question
Post by Oldnewguy on 09/11/09 at 03:24:54

Now that you mention it, I am pretty sure that there is a tech post about a dyna install. The soda can or something similiar is no biggie, could probably find a shop to bend and weld if necessary. In fact a friend of mine owns a garage and 2 Harleys. Thanks people!

Title: Re: Muffler question
Post by babyhog on 09/11/09 at 08:38:44

I Googled Gort's part number and found this site. http://www.americancustom.com/products/slip-on-mufflers/dyna.html

They have a links so you can listen to the sound! Sweeeet!

Title: Re: Muffler question
Post by Gort on 09/11/09 at 09:42:44

I listened to the sound for the muffler they offer and to my ears it sounds almost identical in volume and depth of tone to my Dyna with 2 holes drilled through the baffle. Since you can get Dynas dirt cheap, it might be worth trying drilling 1 to 3 holes in the baffle to see if you like it, before buying that very expensive muffler in the ad.

Title: Re: Muffler question
Post by babyhog on 09/11/09 at 09:56:52

Thanks for that info, Gort. I'm glad the sound is accurate. If you click the LISTEN link on the banner at the top, all the sound links are on one page... easier to compare. It looks to me like the ones with "big deep growl" don't come with a baffle??
I found a few on fleabay, as you said dirt cheap. I was holding off doing this mod, but now I'm really considering it. Man I like that sound!

Title: Re: Muffler question
Post by Ruddy on 09/12/09 at 14:37:02

Any suggestions about making the stock muffler sound better? My wife likes the looks of the one on her '06 S40, but she wishes it sounded more like a real motorcycle. I was thinking about drilling a couple of holes in the baffle with a 12" drill bit. Has anyone tried this? Thanks.

Title: Re: Muffler question
Post by bill67 on 09/12/09 at 14:49:23

I did that you lose a little torque and gain a little on high end,It a little louder but doesn't really sound that good.

Title: Re: Muffler question
Post by Oldnewguy on 09/12/09 at 15:02:24

There is a modification that you can do to the stock muffler that is interesting. If you google "Hartman muffler mod" it will take you to the sites. There is one video so you can hear it and at least one with good pics and instructions.

Title: Re: Muffler question
Post by JustPassinThru on 09/14/09 at 22:20:44

373021213C450 wrote:

You wanna be careful with that. The previous owner of my S40 did that; the sound he got is that of a Briggs & Stratton lawn-tractor engine with a rotted-out can.

Not very nice at all. I haven't changed it yet, mostly because I like the styling of the stock unit and don't want to put Appalachian engineering on the thing just yet. I like the idea of a Sportster muffler, but the conversions I've seen, for the mounting bracket, look positively backyard...