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quietest aftermarket exhausts

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  • quietest aftermarket exhausts

    I was just curious, if someone wanted to use aftermarket bags that wouldn't allow the use of a stock exhaust, due to the height of the top pipe. But they didn't want super loud pipes.
    What are the quietest aftermarket exhausts available?
    owning a motorcycle is not a matter of life or death, it is much more important than that

  • #2
    That's a bit of a difficult question to answer since "quiet" is subjective. Stock mufflers are most quiet because they use *multiple* chambers to bounce the sound back and forth and cancel out sound waves. To the best of my knowledge, *all* aftermarket exhaust uses "straight through" exhaust with variations of packing to quiet things down. Some mfgrs, like Vance and Hines and Cobra, produce what's commonly referred to as a "Quiet Baffle" but they do little to lower the dBs, and instead, work to cut out the harsher, higher frequencies. Also, pipes sound different from the saddle than they do to someone standing by.

    In addition, are you looking for true duals, or keep both pipes on the right side but lower? Do you plan to replace the headers too or just the mufflers? If you go with true duals, you can use the true dual headers and stock R* mufflers, or stock HD take off mufflers which are a dime a dozen. That will keep it the most quiet and give you the room you need. Jclevesque has done that and it looks really good.

    When I had my 2000 R*, I used with a combo of glasspacks, similar to CherryBombs, and Krome Werks HP Plus Drag Pipe baffle in the header to act as a "quiet baffle". You can get the glasspacks in polished stainless steel, which looks like chrome. Personally, I think they sounded way better, and more quiet, than my Bassanis. This video sounds loud because I went full throttle on the first run and moderate on the second.



    This is a mellow pass and again, it pointing directly at the camera vs sitting in the saddle, which sounds more mellow:

    Last edited by Doc_V; 11-14-2018, 03:19 PM.

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    • #3
      Freedom 4” true duals with the quiet baffles. Larger diameter mufflers have the lowest frequency rumble which in my opinion is more desirable.

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      • #4
        A few years back there was a member that used Bassani head pipes and Oem mufflers. IIRC you needed to get mufflers from 2 sets of OEM exhaust. I think it had something to do with the mounts

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        • #5
          Originally posted by davej View Post
          A few years back there was a member that used Bassani head pipes and Oem mufflers. IIRC you needed to get mufflers from 2 sets of OEM exhaust. I think it had something to do with the mounts
          Yes, for true duals you use two of the mufflers with the center inlet vs the ones with the offset inlet. You’d have to cut the OEM pair apart though.

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          • roadiemort
            roadiemort commented
            Editing a comment
            As well as weld a patch over the hole where the crossover tube was removed.

        • #6
          love the look of my freedom sharktails, but, i'm finding the older I get, the less I enjoy loud pipes.
          Right now I wear ear plugs which is the cheapest route. I cant see paying the price for another set of duels without having something to use these on. (damn, they are expensive) I thought about the bassani head pipes, with HD cans (I have 2 sets) but not sure how I would make the holding brackets as my bag supports are built into my bags and not like the stock brackets... but i'm sure it could still be done with enough thought
          owning a motorcycle is not a matter of life or death, it is much more important than that

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          • #7
            Try these. Sorry just saw these won't work for your pipes


            https://www.jpcycles.com/product/903...t-quiet-baffle

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            • #8
              Mort, no crossover on the OEM muffler can.

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              • roadiemort
                roadiemort commented
                Editing a comment
                Yup, small but they are joined together.

            • #9
              Originally posted by davej View Post
              Mort, no crossover on the OEM muffler can.

              Looks like a crossover pipe.

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              • #10
                Since you don't have bag supports, the easiest thing would be to weld the two tabs on the back of the can like the stock Basanni slip-ons. Maybe a local muffler shop, etc., could do it for you, you cut the strips, they weld them on. Just a thought.

                Factory HD takeoff slip ons are dirt cheap and more quiet than any aftermarket slip on. Here are a set for $55 from a 2017 HD Touring model with only 1k miles on them:
                Take-off's from a 2018 Ultra Classic. PART #: 64900235/= & 64900236. Harley Davidson. Fits 17-later Touring models. Does not fit Trike models. 50-State U.S. EPA compliant. | eBay!
                Last edited by Doc_V; 11-14-2018, 06:54 PM.

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                • #11
                  Click image for larger version

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                  • #12
                    I run Bassani headers and HD touring cans. Nice rumble, quiet and was cheap.

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                    • #13
                      Originally posted by roadiemort View Post
                      Click image for larger version

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                      I guess there is I thought it was in the pipe. It's been a long time since I've seen a set of stock exhaust. lol

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                      • roadiemort
                        roadiemort commented
                        Editing a comment
                        Don't feel bad, You are one of the go to guys with more knowledge than most on these bikes and more. The only reason this one is stuck in my mind is that I was seriously contemplating this mod back in the day when it was posted with step by step pics and narration on the old RSC.

                    • #14
                      Originally posted by cike View Post
                      I was just curious, if someone wanted to use aftermarket bags that wouldn't allow the use of a stock exhaust, due to the height of the top pipe. But they didn't want super loud pipes.
                      What are the quietest aftermarket exhausts available?
                      Your best bet would be HD touring stock take-offs. You want them from later years like off the 103's. Then just figure out some type of mounting brackets. I mention the later models because they have no cats in them and right and left are baffled the same way. On some of earlier models, the left was baffled different than the right which could cause jetting problems on the RS. Also, if they are too quiet, you can drill out one of the 2 plugs that are in each muffler.with a 1 1/4" bi-metal hole saw with an extension. One is located about 12" in from the inlet and the other is located about 12" in from the outlet. I just put them on my 2008 RSV and they were as quiet as the stock mufflers. I drilled out the rear plug in each muffler and now it has a slight rumble, but no where near other aftermarket. mufflers.

                      If you know of any local HD independent shops, they will usually just give them to you as they have no use for them. That's how I got mine from a 2014 Road King. He usually just trashes them.

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                      • #15
                        For 2017 I ran smokes old freedom head pipes with stock co cans. Sounded good but was too quiet for my taste.

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                        • #16
                          Are the shark tails louder than the 4 in. round mufflers?

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                          • #17
                            Originally posted by Jlb76 View Post
                            Are the shark tails louder than the 4 in. round mufflers?
                            A different tone,,,,higher frequency......not as low a rumble as the 4”.

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                            • #18
                              Originally posted by Jlb76 View Post
                              Are the shark tails louder than the 4 in. round mufflers?
                              I has a set of the older style freedom duals once, Not sure if they were 3.5 or 4'. They were the non fishtail type with black caps but no slots cut into the caps if I remember right. They were pretty quiet. They came on a used bike that I bought. I think I road with them for about 3 rides then took them off and sold them to a member on here for like $350 (I think) They were a lot quieter then the sharktails that I have now. Unfortunately, they would be perfect for what I am now looking for. I'm not sure how the newer style 4" freedoms sound compared to the older style.
                              BTW my shark tails are the one dia. all the way back style and not the ones with the larger mufflers.
                              owning a motorcycle is not a matter of life or death, it is much more important than that

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                              • #19
                                Larger diameter = lower frequency sound.......generally!

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                                • #20
                                  went for a ride over the weekend with my earplugs in under my helmet. didn't sound to loud that way. Guess ill just ride it like that for a while (winter time anyway) maybe down the road look into getting some headpipes and figuring out to make some brackets to mount up my stock HD touring pipes. (2012 model mufflers)
                                  owning a motorcycle is not a matter of life or death, it is much more important than that

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