Poll: How Do You Feel About Loud Pipes? - Page 4 - Kawasaki KLR 650 Forum
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post #31 of 56 Old 05-29-2018, 12:09 PM
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I like the noise. I have an eBay glasspack that doesn't do much.
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post #32 of 56 Old 05-29-2018, 01:10 PM
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Necroed thread but what the heck: My KLR silencer post;

A subjective topic but to recap recent discussions;

I don't like loud but I've replaced the stock silencers on both KLR's for several reasons, namely; lighter weight (5 - 7 lbs), better tone, better looks. .....I wouldn't recommend it thinking there will be a noticeable increase in power, nor would I put much faith in manufacturer's that claim much in the way of HP increases (with no other changes).

After much research and some testing, I like the LeoVince X3 which is relatively quiet at 94db, doesn't require repacking (the only one that doesn't AFAIK, except for the ridiculously expensive Staintune out of Austrailia), looks decent and has a spark arrestor and USFS compliance. Runner up would be the Lexx with the optional trail insert; also around 94db but it does require periodic repacking. I also like the FMF Q4 but it is a bit louder (though still trail compliant) at 96db (keep in mind that the increase in decibels isn't linear).

There are a great many aftermarket silencers on the market that are far too loud IMO and you'd do best to avoid them.

Good luck,

Dave
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post #33 of 56 Old 06-03-2018, 01:06 PM
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Loud bikes

We live on an elevated (hill) area, about 1 - 2 miles from interstate highways.
(N.H. Rt's 89 & 93) Separated by a lot of trees/woods.
Last night while enjoying our back yard from our porch, all we could hear was loud Harleys, and such, echoing across the countryside. Sounded like they were right out front of the house.
We listened for a while, when there was a distant "thud" followed by tire screeching. Things got kind of quiet for a while, until the sirens of fire trucks, and ambulances.

Bike week in Loudon N.H. is coming up mid June. They must be fine tuning their exhausts for the big event.
Hope the thud was not a bike!

Quite is my vote, FWIW

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post #34 of 56 Old 06-03-2018, 04:01 PM
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"Loud Pipes Save Lives!"



(Just kidding!)
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post #35 of 56 Old 06-04-2018, 11:09 AM
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Q) Do you still have: FMF Q4?

I need to replace my damaged OEM exhaust. Just asking... thanks!!
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post #36 of 56 Old 06-04-2018, 01:24 PM
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Well . . . I don't believe aftermarket mufflers add significant power increase across the rpm spectrum in comparison with OEM mufflers; certainly, with nominally stock engines.

As to, weight-saving, a few pounds to a 400+ pound motorcycle won't produce significant handling improvements, nor mass reduction, seems to me (a half-gallon less fuel in the tank will do the same weight reduction).

Now, as to noise . . . just sharing my own experience: My WINGS muffler (made in Silesia) is lighter by far than the OEM muffler, and sounds GREAT, on my KTM690! Don't know if it has the "db" core, or what, but . . . it sounds good, WITHOUT objectionable loudness.

Someone lusting for muffler weight reduction, and sonorous, lilting (but discreet) sound for their KLR650 might consider WINGS. Reportedly, great customer service and prompt shipping from darkest Silesia.
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post #37 of 56 Old 06-04-2018, 01:50 PM
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Loud Pipes = Short Di(#
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post #38 of 56 Old 06-04-2018, 01:54 PM
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Quote:
Originally Posted by Damocles View Post
Well . . . I don't believe aftermarket mufflers add significant power increase across the rpm spectrum in comparison with OEM mufflers; certainly, with nominally stock engines.

As to, weight-saving, a few pounds to a 400+ pound motorcycle won't produce significant handling improvements, nor mass reduction, seems to me (a half-gallon less fuel in the tank will do the same weight reduction).

Now, as to noise . . . just sharing my own experience: My WINGS muffler (made in Silesia) is lighter by far than the OEM muffler, and sounds GREAT, on my KTM690! Don't know if it has the "db" core, or what, but . . . it sounds good, WITHOUT objectionable loudness.

Someone lusting for muffler weight reduction, and sonorous, lilting (but discreet) sound for their KLR650 might consider WINGS. Reportedly, great customer service and prompt shipping from darkest Silesia.
Hmm; never heard of Wings nor did a google search get me anywhere.

On the rest, the hp increase may not be huge but it does exist. Your addition of the word "signficant" saves you! :-)

Silencer swaps are only ever tested with the appropriate jetting changes which also include airbox mods so it's difficult to quantify. This one is a bit optimistic compared to most but FWIW; https://www.klrchris.com/ It's my belief that the "stock silencer makes the most power" mantra is urban myth. little power, sure......not much for the extra money? absolutely. None or a negative amount? I call BS....at least for the decent units.

....and to the weight; well it may only be 6 lbs on a 400 lb motorcycle, but it's high up and combined with other weight saving "low hanging fruit" (like a 9 lb lighter battery) starts to add up. I've pared off 25lbs on my KLR's.....AND I've stopped myself from overfueling so I'm routinely running 40 - 50lbs lighter than I used to. VERY noticeable offroad.....particularly when you have to pick it up. All those Gen2 owners cruising the slab with panniers, top boxes, huge windscreens and coffee cup holders won't care!


YMMV

Dave
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post #39 of 56 Old 06-04-2018, 03:02 PM
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Still have to sell my Sportster. However, loud pipes are great to let people know they are holding you up. You get behind someone and drop a gear or two. But, I like the quiet of the KLR. Especially this past weekend cruising in the country.
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post #40 of 56 Old 06-04-2018, 07:15 PM
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Quote:
Originally Posted by DPelletier View Post
Hmm; never heard of Wings nor did a google search get me anywhere.

On the rest, the hp increase may not be huge but it does exist. Your addition of the word "signficant" saves you! :-)

Silencer swaps are only ever tested with the appropriate jetting changes which also include airbox mods so it's difficult to quantify. This one is a bit optimistic compared to most but FWIW; https://www.klrchris.com/ It's my belief that the "stock silencer makes the most power" mantra is urban myth. little power, sure......not much for the extra money? absolutely. None or a negative amount? I call BS....at least for the decent units.

....and to the weight; well it may only be 6 lbs on a 400 lb motorcycle, but it's high up and combined with other weight saving "low hanging fruit" (like a 9 lb lighter battery) starts to add up. I've pared off 25lbs on my KLR's.....AND I've stopped myself from overfueling so I'm routinely running 40 - 50lbs lighter than I used to. VERY noticeable offroad.....particularly when you have to pick it up. All those Gen2 owners cruising the slab with panniers, top boxes, huge windscreens and coffee cup holders won't care!


YMMV

Dave
Don't want to generalize, but . . . independent dyno charts I have seen show higher horsepower at some regimes with the OEM muffler than with aftermarket silencers. At other rpm regimes, the "trick" muffler registers modest power gains over the stock exhaust.

I may have opened up a lucrative niche market for Wings Superflow Silencers:

wingsexhausts, Slovenia

In 2005, an inmate of .net tested a Wings muffler on a KLR; don't know how or where that went.

Practical problem for Wings: Getting KLRistas to PAY for their product!
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