Kawasaki KLR Forum banner

Quiet Muffler?

35K views 35 replies 15 participants last post by  alphashifter 
#1 · (Edited)
Hi Everyone!
I am interested in an after market exhaust system. What is the quietest, best flowing muffler or exhaust system? I don't like loud exhaust, I like to be audibly invisible when I ride:desismiley1:
Regards....justjeff
 
#2 ·
Sounds like your describing the factory exhaust! :)

I like quiet bikes too. I honestly don't think there is enough power gain to warrant an aftermarket exhaust. I'm sure others will have different opinions, but for me the factory muffler is just about perfect :D

(Plus, I already have it so I don't have to shell out a bunch of cash to replace it)
 
#7 ·
I agree with all. Keep it stock. I put a FMF on mine and hate it. It even has a spark arestor! Loud is okay on the street I suppose, to a point, but if you do any camping in a campground your neighbors will hate you. Load your bike up with all your fishing gear, ride it down to the boat dock at 4-5am............. Good luck!

Besides all an aftermarket exhaust will do for your bike is increase the impression ratio. :28:
 
#3 · (Edited by Moderator)
Hey all, posted this on a Gen1 thread originally but I am seriously considering this so i thought I would post here too. I apologize in advance to the mods if this is not allowed or considered "spamming and idiotic" but trying to get as much info a possible before I pull the trigger on anything.

I have been debating adding a Lexx to my 2011. I have done the .22 mod and am enjoying the added power due to enrichment. Here are my questions for those that have run a Lexx for a bit:

25 hours is like a weeks riding for me. I don't want my bike obnoxiously loud, do you really have to repack that often?

Has anyone figured a way to avoid the separation mentioned in previous posts? I ride mostly asphalt for my commute but like my options open and am a little (ok, a lot) OCD about my bike.

Do I have to make any other mods to keep my bike in optimum power range? I don't feel like cutting my air box or working on my carb any more if I install one. (As simple as it is, I HATE working on the carb)

Lastly, how much better does she purr than just taking out the tweeter tube? I have a 1.5 inch hole saw (just enough to remove the indented part of pipe) I was debating on using on my pipe to remove the tweeter tube for a low buck mod to give a little deeper rumble, but am willing to spend the 2 bills if the Lexx gives better sound (but again, not obnoxiously loud) as well as a better bump in performance.

I ride daily 70+ miles and my bike is my primary vehicle so I prefer mods that add not only power but also don't effect reliability.

Again,thanks everyone!

Thanks again for your input y'all.

Mike

Sent from my Motorcycle iPhone app
 
#5 ·
I have to agree with 650Stew. The stock muffler is fine for me. The only reason I would get rid of it would be to shed some weight. There's really no power gain from changing the muffler especially for the cost.

That being said have you checked this thread:

http://www.klrforum.com/showthread.php?t=9863

.
 
#8 ·
Besides all an aftermarket exhaust will do for your bike is increase the impression ratio. :28:

I like that! Best statement about loud cans I have heard to date!

I had a stock can, wanted better flow, didn't want loud, so did it my way, just the tweety tube, increased the flow and also the slight increase in sound....not bad at all. Then still after more flow drilled out the spark arrester again increased the flow and sound, Now again same reasoning I purchased a LEXX...not much louder than my modded stock can but flows way better than any stock can could. Once you see a can opened up and see where they have the gasses forced to go you will soon understand why the stock can will never flow anywhere near what an after market can will. The LEXX is a good can for what it is a $200 slip-on with a quiet tip thrown in for good measure. I have run it without this tip in place....Holy crap batman loud is LOUD!!! It is ludicrusly loud! But it will allow your engine to process all the air it can get into it that is for sure! It is basically an open straight through pipe with a perforated pipe to try and catch some sound, it doesn't...lol. BUT it does make a noticable difference once you reinstall the quiet tip.
Now is it worth it or is it quiet enough for someone who likes the level of quiet the stock can gives you....maybe not!
If you are wanting a better flowing exhaust and are going to buy a can but just can't afford or don't want to afford the Staintune can which imho isn't that much quieter but doesn't need repacking at 3 times the price then yes it is worth it.
It is the quietest can I could find and just happens to be a cheaply priced one too. It is built pretty well, no complaints there, it doesn't need repacking as quickly as they say I have found. I thought it was getting louder so repacked mine, only to find out there was nothing at all wrong with the packing that was in it to start with, it was just that I was noticing the sound more that day and it was bothering me the more I concentrated on it. It wasn't louder it was just me. It also wasn't that difficult to do, I had never repacked an exhaust before this either.....once I got past the pissed off stage for spending money when I didn't have to it went well. I also used the best packing compared to just fibreglass bits or wading.

I think there is an even quieter tip but it would bring the flow back down to the same size as the stock exhaust hole so why bother?

Hope this helps....:13:
 
#19 ·
Leo Vince @ 94dB ~$300 and Lexx @96dB ~$200, I have the Lexx and it is very pleasant, I don't like loud exhaust and it isn't bad, it has a nice lower tone to it.

Regards,
Kent
 
#24 ·
I've had experience with supertrap, what I've found is that for the same dB of noise out put they have more back pressure or restriction, they don't have the glass to burn out and replace but they are noisier for the same flow as a glass packed design.

Regards,
Kent
 
#26 ·
Hey Guys,

I didn't read the whole thread so I don't know what happened :t1202:

You know how new people are they just reply without reading the posts :63a:

Anyway, I agree with my old pal Paper and some others, stock is work'en for me. I was going to buy a fancy system and jets when I had MOD FEVER but I did some math and changed my mind.

I was all about making my bike better on mileage and the pipe was said to add power and 'up to 5 mpg' if you jetted it out just right. Cost for the pipe and jet kit was around 379 -390.00, I forget which, and gas was selling around 2.60 a gallon.

My 06 gets an even 50 when I hold my mouth just right and 53 - 55 was like the best sounding thing since they started selling Peanut Butter in the really big jars. I had went to school and remembered math so I started working some word problems with the current mpg the projected, the cost of the mod, etc.

I ran this thing through my Hewlett Packard 15-C Scientific over and over in several basic equations........This can't be correct; so I call my pal the math wiz and without telling him my results I e-mail him the information to set up the calculations.

Results = his answer matched what my math challenged mind came up with.

Considering the fuel cost, the mod cost, existing mpg and projections of both mpg and fuel cost in the near future; You Would Have To Drive My KLR 31,766.68999999 Miles To Recover The $390 you spent on the new Shiny Loud Pipe.

Honest To God, so keep the stock pipe unless it is defective in which case you're the cook.

How's everyone been?

Ard
 
#36 ·
Considering the fuel cost, the mod cost, existing mpg and projections of both mpg and fuel cost in the near future; You Would Have To Drive My KLR 31,766.68999999 Miles To Recover The $390 you spent on the new Shiny Loud Pipe.
Now THAT'S thinkin' with yer dipstick.
Looking back, I've historically sold each of my bikes after about 19,000-24,000 of my miles.
 
#27 ·
Very interesting! Kinda puts things into perspective from a fuel consumption point of view. I wonder if with careful jetting you could achieve the same fuel savings without installing the muffler? Did you factor in the fuel saving expected by the reduced weight? :laugh2::laugh2::laugh2: Sorry Hardyreels I am Soooooo just kidding!!
Thanks for the info.
Regards....justjeff
 
#28 ·
Hi Jeff,

The only way I know to really tune in a carborated engine for optimum fuel economy is to drill the head pipe and attach a sensor attached to an exhaust dyno meteor. This device will measure the octane level in the exhaust under throttle. You attach a vacumm gage (mercury type) to the carb and then play with the jetting to tune the O2 / Fuel mix to reach optimum burn.

I had a KZ-1100 that was set up this way with a Kirker 4 into 1 system and the fuel economy and performance were both off the charts. I could quote mpg in a PM but would risk being called a BS'er if I said it on the open board.

If you really want to dial in a KLR what I just described will do it.

Ard
 
#29 ·
Hardyreels - no kidding - I'm suprised "payback" is only that long...
I never could understand the endless chatter about mpg on motorcycle discussions... let's see we buy machines that have the aerodynamics of a farm tractor, high power to weight ratio, their inherant zoom factor encourages brisk application of such power, 80 mph (with said aero efficiency) feels just right some days, tires are high tech and expensive and wear fast, we get gouged for insurance, can't ride some times of the year depending where we live, etc.
Yet we comment, discuss, and sometimes argue about fuel mileage.... not to mention engine oil, "mods", tires, and exhaust pipes...

When someone asks "what kinda mileage ya get...?" ... and they do.... I say "it burns all the gas I put in it..."

Back to my Butler map gazing....
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top