FMF Q vs. stock WR muffler



9 replies to this topic
  • MotoGreg

Posted September 07, 2002 - 03:51 PM

#1

I've been riding my WR on the street a lot lately with the Supermoto 17" wheels and it's just too loud with the DSP exhaust I have.

How much difference is there in noise and power when comparing the FMF Q and the stock WR with baffle in place? Is the FMF louder than the stocker? If so, how much? How is the performance difference? I don't really have the money to spend on the FMF right now but I figured I could pick up someone's stock WR system for next to nothing.
Posted Image

[ September 07, 2002, 06:53 PM: Message edited by: MotoGreg ]

  • Steve_WR400F_#61t

Posted September 07, 2002 - 08:09 PM

#2

I don't know exactly, but I've "heard" that the Q-pipe adds a little bottom to mid power over the stock WR pipe and is around 96-98 decibles. Stock pipe is 100+ without the baffle/plug. How loud is the DSP system? How does it do compaired to the stock system as far as power? I'm looking to get a new system for my WR and I'm looking for something that adds power throughout the RPM range, especially on the lower/bottom end.

  • MotoGreg

Posted September 08, 2002 - 07:03 AM

#3

Anyone know what the stock WR pipe is with the baffle in place? And how that compares with the Q? I wouldn't run it without the baffle so I'm not worried about that.

The DSP works great, has smooth all over power, I had an E-series before I got this and the DSP is much better... just loud!

  • tripod

Posted September 08, 2002 - 11:30 AM

#4

Look on your exhaust, mine has 82 db. stamped on it as far as baffel in place.

  • MotoGreg

Posted September 08, 2002 - 02:55 PM

#5

And that's a stock WR exhaust USA version? That sounds like it would be really quiet! I think I'll just keep my eye out for a stock system.

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  • Stefe9999

Posted September 08, 2002 - 04:45 PM

#6

Motogreg,
I run the US pipe with a Vortip, it produces a sound level I would take anywhere and there seems to be little performanc compromise. A couple weeks ago, we compared it to an FMF-Q and the Q is louder, more of a deep bass note to it. The Q is quite a bit quieter than the uncorked US pipe. My European pipe is 82db and it is -very- quiet.

I've never heard the US pipe with the insert in, because when I got my used one, it didn't come with it. But, if it the corked US pipe really is 82db like the Euro, it should suit your sound level needs.

  • huskyrider

Posted September 08, 2002 - 06:05 PM

#7

My WR's were so quiet with the baffle in place I could hear my cellphone ring over the exhaust. Very Quiet.
And very slow. I was so dissapointed with my purchase I could of kicked myself in the ass.
I found this site searching Google for WR426 modifications.
If you want a stock exhaust I'll gladly trade you mine and a little coin. I can send you pics of either or both of my bikes pipes.
There are no dents or scratches on headpipe or muffler of either.

  • Brian_in_Long_Beach

Posted September 09, 2002 - 09:14 PM

#8

MotoGreg,
I ride a '99 WR400 with the stock exhaust & a Thumper Racing Quiet Core insert. I've been measured at 95 & 96 dB by the USFS. I think this combo is quiet enough for the street. I'm 250-260lbs and there is enough power for large butt.

I've ridden with guys that run the Q and it's slightly louder than my bike. If I trashed my stock system I would get the Q just to drop a few pounds. It's quiet enough not to be a problem IMO.

Brian

  • WR_Jason

Posted September 09, 2002 - 11:21 AM

#9

I have a 99 WR with stock exhaust w baffle removed. I put it in for kicks when I first got the bike used, and it was quite, I mean sounded like a John Deer lawn mower quite! Then I took it out for a rip and could barley lug through 4 inches of snow or mud with the throttle wide open. Now that I have dialed the bikes post mod jetting in If I stick the baffle in the bike WILL NOT START!!!! If I start the bike and shove the baffle in it will run at idle but if you crack the throtle it will flood and shut off. I only use the baffle when I am doing late night oil changes in my back yard to be polite to the old folks and sleeping woodland creatures in a 1/2 mile radius :) . I will definatly trade you though, I dont really care how loud it is, I dont think the open US WR pipe is too loud, and the area I ride in is not noise sensitive.
Props to you for caring about how loud your bike is on the road and all, but roll up next to a Harley at a stop light and see if you can here your bike running,,,,, :D
BTW, where do you get rims like that, I would love to put my WR on the road with just a quick swap of wheels :D .

  • MotoGreg

Posted September 09, 2002 - 04:08 PM

#10

Thanks for all the info guys. I think I'll look for a dirt cheap stock exhaust just to try it out but I'll keep my DSP just to be safe.

WR Jason... I got the wheels from Moto-Master, there should be a link at the top of the page.




 
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