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How to make Stock version even quieter ?

5.1K views 19 replies 16 participants last post by  916hoon  
#1 ·
Are there any baffles or db killers for the stock?

I have kinda sensitive hearing so i want to protect myself. I wear Ear plugs and have the C3 Shurbert helmet.

Any ideas?
 
#4 ·
You nailed it RE...In terms of the quietest motorbike engines...BMW is the ticket, in my opinion too. Honda Gold Wing is pretty dog-gone quiet as well!

The fella is that concerned about the sweetest sounding motorbike engine on the planet....1198cc Desmodromic Testrastetta II EVEN with OEM stock canister installed is too loud??? Oh well, what a shame...his loss, not ours!!!

All the best Bro.
 
#6 · (Edited by Moderator)
Go figure.......and I just took out my Baffles on my newly installed full Termi system because I thought it was way to quiet!! Seriously though, don't deny yourself the fun with owning this type of Machine. Next you'll be wanting to see the plastic surgeon from removing the wrinkles caused by the grin that's created on your face from Diavel throttle roll on. All kidding aside, maybe you can try getting some personally custom molded form fitting ear plugs here: http://www.ultimateear.com/motorcyclist.php http://www.ultimateear.com/motorcyclist.php asdfas
 
#10 · (Edited by Moderator)
+1...How come nobody else thought of that?.....You're a genius Matt!

Imagine never having to buy gas, insurance, no maintenance ever, no washing/cleaning, no accidents to ever worry about. WoW!

Literally, a dream machine ONLY....Now time to go spank the monkey.
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#8 · (Edited by Moderator)
VVG, I used to ask the same question. I think an Arrow pipe with the baffle in is quieter. Not a lot but in my opinion, and I have one, quieter at lower rpm. Every one else is correct, a Diavel will never sound like a Goldwing though.

But of course I haven't had the baffle in for the last 15000 miles. And it sounds pretty damn good, (with ear plugs. Hey I love my hearing too!)
 
#16 · (Edited by Moderator)
I have a C3 Pro as well. Wish the dang thing didn't whistle whenever I turn my head 15 degrees left or right. My dad lost some hearing working in field artillery and I don't wish to have that same problem. I use the OSHA ear fatigue limit charts as a guideline. I also think if the exhaust is ~3dB quieter than the wind noise at my ears on the conditions I ride steadily, it's quiet enough that it's not going to be the driving factor in hearing damage, so I should spend my efforts focusing on something else.

Any time I hear my ears ringing after a ride I know I screwed up and I spend some time evaluating how to not make it happen again. That's why I got the C3 pro in the first place, and I now wear earplugs for any ride over ~30 minutes.

The Arrow with dB killers installed is ~3dB quieter than stock, and with that setup and freeway driving conditions, wind noise drives hearing fatigue and exhaust is a secondary source. Keeping a catalytic converter has the effect of reducing the noise level as well (most aftermarket exhausts do not include one). Mobcrimeboss bought the termi slip on and did a great thread on how he went through and basically gutted and redid the entire exhaust to his specs, and the end result was a quieter exhaust and a sound signature he said he preferred - it's worth a read and may be worth PMing him.

Since they are quieter (and more restrictive) OEM systems than elsewhere, I expect you could find someone in Japan to trade you stock exhausts if you pay shipping - many there seem to prefer the non-Japanese exhausts. Finding an English speaker would be the bigger challenge there, but a few users on this board live out there.

Bottom line, if that's the holdup but you like the bike enough that you are willing to invest some effort and maybe money to address it, you will be able to make the exhaust on the bike mild enough that exhaust related hearing fatigue will not be any greater a danger to your hearing than riding any typical motorcycle.