Cobra Swept exhaust, too much noise... - Kawasaki Vulcan Forum : Vulcan Forums
 
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post #1 of 10 (permalink) Old 11-28-2011, 04:50 AM Thread Starter
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Cobra Swept exhaust, too much noise...

I have after 4000 km found that Cobra Swept Exhaust is too loud for my ears. Love them on shorter trips, but after an hour's time or so it starts to get uncomfortable for my ears.
Is there any way to reduce the sound, not too much but a 20 or 30%?

My whole life people have told me, "if you don't have anything nice to say, don't say anything at all!" Then they sit there and wonder why I'm so quiet!

----------------------------------------------------
*Vulcan 900 SE Custom - 2010
*OEM Lightbar
*Cobra Swept exhaust
*Cobra FI2000
*Baron BAK
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post #2 of 10 (permalink) Old 11-28-2011, 06:32 AM
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with out going the whole baffle route, a nice set of ear plugs from your local hardware store in the safety section. $15 cdn for 80 pair, drops the sound by 30bd and you can still hear whats going on around you. I don't have aftermarket pipes and i use em every ride.

As i flipped into 5th, i couldnt remember a damn thing she said
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2009 Classic LT Bagger ... SOLD .... ... Batwing Fairing, Metzler 200 rear, Mutazu Hard Bags, Denray Hitch, Mustang Seat, Piggybacker Trailer. traded on a Versys 650 LT ... Loaded

2010 Custom [I] ... traded on a 2015 Ninja 650 Abs traded on a 2016 Versys 650 LT ... Loaded
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post #3 of 10 (permalink) Old 11-28-2011, 07:32 AM
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I have the answer for you, I have done it myself and it works
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post #4 of 10 (permalink) Old 11-28-2011, 07:58 AM
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Originally Posted by whiting57 View Post
with out going the whole baffle route, a nice set of ear plugs from your local hardware store in the safety section. $15 cdn for 80 pair, drops the sound by 30bd and you can still hear whats going on around you. I don't have aftermarket pipes and i use em every ride.
If you use ear plugs for wind noise, that's one thing. But if you use them because your pipes are too loud, think about the people around you. Cages, pedestrians, other riders, etc. You're subjecting them to your noisy ass bike that even you can't tolerate.

I was on a PGR escort mission, and on a 50 mile leg I was behind a guy with straight pipes. By the time we stopped, I had such a headache. When we resumed, I made sure to shuffle and get behind someone else. Not cool.

My biggest fear is when I die, my wife will sell all my guitars for what I told her I paid for them.
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post #5 of 10 (permalink) Old 11-28-2011, 07:59 AM
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I have the answer for you, I have done it myself and it works
How mysterious. Care to elaborate?

My biggest fear is when I die, my wife will sell all my guitars for what I told her I paid for them.
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post #6 of 10 (permalink) Old 11-28-2011, 09:03 AM
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If you use ear plugs for wind noise, that's one thing. But if you use them because your pipes are too loud, think about the people around you. Cages, pedestrians, other riders, etc. You're subjecting them to your noisy ass bike that even you can't tolerate.

I was on a PGR escort mission, and on a 50 mile leg I was behind a guy with straight pipes. By the time we stopped, I had such a headache. When we resumed, I made sure to shuffle and get behind someone else. Not cool.
Bill, i agree 100%, thats why i suggested the 80 pair box, there will be some for everybody else.

My brother in law has HK straights on his vtx .... i wont even ride with him any more.

As i flipped into 5th, i couldnt remember a damn thing she said
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2009 Classic LT Bagger ... SOLD .... ... Batwing Fairing, Metzler 200 rear, Mutazu Hard Bags, Denray Hitch, Mustang Seat, Piggybacker Trailer. traded on a Versys 650 LT ... Loaded

2010 Custom [I] ... traded on a 2015 Ninja 650 Abs traded on a 2016 Versys 650 LT ... Loaded
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post #7 of 10 (permalink) Old 11-28-2011, 02:53 PM
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They're not quite enough for me . . . of course, I seriously get off at the sound of loud pipes. My lady, too!
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post #8 of 10 (permalink) Old 11-29-2011, 06:06 PM
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I have Speedster Shorts and I agree they can be loud especially if you are switching from an inline 4 as in my case. I tried earplugs but the low end drone got worse as it was just a muffled mess. I rode a few weeks ago again without earplugs and actually prefer it. I have toyed with the idea of finding used stock pipes but kind of find it bassackwards to dump money into a bike to downgrade it. Bottom line, I love my Cobra pipes and they sound excellent but yes I wish I could soften the low end rumble more.

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post #9 of 10 (permalink) Old 11-30-2011, 07:06 PM
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I have V&H's and installed baffles, and it made the volume tolerable; I would suggest this as a solution.
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post #10 of 10 (permalink) Old 11-30-2011, 07:44 PM
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I had the same issue wuth the swepts on my Custom. According to Cobra, the swepts already come fitted with 'quiet' baffles, so I installed a pair of Smartpartz HardCore "quiet baffles" in conjunction with the std. baffles and they made a difference by toning down the sharp exhaust note of the Swepts.

Apparently some members of this forum have indicated they haven't helped, but I can confirm they do work for the swepts. Because of the curved nature of the swept's baffles, they are a bit harder to install than on a straight pipe. I ended up removing the baffle section off the bike and with them clamped in a vice, used a length of timber dowel and a liberal spray of WD40 "tapped" them out. When I got mine, the included instructions weren't quite correct.

The baffles fit onto the end of the Cobra baffles and reinserted together (with WD40 to help) back into the pipe section. With the swepts, you have to remove the captive nut from the swept baffle first, as the HardCores need to use the same locating hole, because of their curved shape With straight pipes you just drill a new hole in the original baffle.

Check out SmartPartz's website for further info. Good luck and hope this helps.
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