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  • FMF

FMF Q4 Spark Arrestor Muffler - 042156

  • Part #: 433981
  • Manufacturer Part #: 042156
  • MSRP Price: $359.95
  • Our Price: $323.99
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Overview of FMF Q4 Spark Arrestor Muffler - 042156

  • The result of years of championship off-road racing technology
  • Twin-stage core design extends the life of the packing and lowers the dB output
  • Includes spark arrestor
  • Titanium version features an American TIMETAL canister, end cap and mid-pipe

  • Included Items:
    (1) Muffler
    (1) 8mm-1.25x35mm bolt
    (1) Spacer


Specs

Type Slip-On/Muffler
Units Each
Weight 6.65 lbs

Specs for FMF Q4 Spark Arrestor Muffler - 042156

Type Slip-On/Muffler
Units Each
Weight 6.65 lbs

Fitment for FMF Q4 Spark Arrestor Muffler - 042156

Part 433981 fits the following machines

See if this part fits your ride

Kawasaki
2007 Kawasaki KLX250S
2006 Kawasaki KLX250S

Reviews for FMF Q4 Spark Arrestor Muffler - 042156

out of 19 reviews.

19 out of 19 (100%) customers would recommend this to a friend.

5 Stars
14
4 Stars
3
3 Stars
2
2 Stars
0
1 Stars
0
Fitment:
Sound: A Little Loud
soft loud
Finish:
Performance:
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Not the best looking exhaust

August 6, 2013

Yoshimura RS2 exhaust would not fit my 08 DR-Z 400sm called the Yosh factory and was advised they have had other problems with shipments from the facotory. They did not seem to be very sympathetic to my situation, they wanted me to send it back to them and they would send me one they said would fit, but wanted me to pay for shipping. Didn't sound like a very good deal to me so I Returned the Yoshimura to Dennis Kirk and replaced it with an FMF Q4. The FMF fit fine but the craftsmanship was a little disappointing the sticker and the strap that mounts the exhaust to the frame make the exhaust look cheap. It sounds great and I did notice a performance gain.

I would recommend this item to a friend.
Fitment:
Sound: Soft
soft loud
Finish:
Performance:
By: from Souhern Illinois

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Great Pipe

May 10, 2013

Got this on my raptor 350 and it sounds awesome! Got a nice throaty sound to it and feels like it has a little more snap at the throttle. Great add on for and quad.

I would recommend this item to a friend.
Sound: Loud
soft loud
By:

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May 8, 2013

Went on really easily and creates a deeper tone without being obnoxious.

I would recommend this item to a friend.
Fitment:
Finish:
Performance:
By: from milford,mi

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Quiet exhaust, somewhat

April 13, 2013

I don't think any exhaust is going to be super-quiet, without affecting performance. This is definitely more quiet than the White Brother E-Series exhaust it replaced. That one ran almost 100 dB. This one maxes out at 96 dB. It doesn't seem like a lot, but it is on the ears. I would recommend this for anyone looking for a quieter exhaust. Even though the stickers have foil on the back, on recommendations from other reviewers, I took them off before running it. Still looks cool.

I would recommend this item to a friend.
Fitment:
Sound: A Little Loud
soft loud
Finish:
Performance:
By:

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Great add on

September 24, 2012

I bought the Q4 pipe for my 660 raptor, it really boosted the torque quite a bit. At idle it's not much louder than the stock pipe, but once u hit the throttle it starts barking pretty loud. I didn't have to rejet wich was a big plus. Installation was easy, it took about 20 mins. Not impressed with fmf sticker on it though. Overall its a great pipe, that produces considerable more power, I'd recommend it to anyone

I would recommend this item to a friend.
Fitment:
Sound: Loud
soft loud
Finish:
Performance:
By: from Boston MA

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Best purchase

May 25, 2012

Exactly what I had expecteded.Great sound and performance.Installation couldnt be easier.A must have.

I would recommend this item to a friend.
Fitment:
Sound: A Little Loud
soft loud
Finish:
Performance:

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Quiet Performance

April 27, 2012

Chose the Q4 since I had a hunch the Powercore would be too loud for residential and trail riding. Fitment was flawless, and it's not a loud as I thought it would be. Certainly less "barky" than the Powercores I've heard, with substantial increase in bottom end grunt. For those of you on the fence between this and Powercore, the Q4 is worth a few extra bucks if sound level is a concern.

I would recommend this item to a friend.
Fitment:
Sound: A Little Loud
soft loud
Finish:
Performance:
By: from Northeast Ohio

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Great Power and sound

January 8, 2012

Delivers great power and nice sound with out breaking your ear drums. We race enduros and this pipe passes the 98 db needed for each race.

I would recommend this item to a friend.
Fitment:
Sound: A Little Loud
soft loud
Finish:
Performance:
By: from Grand Rapids, Mi

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Instructions and Media for FMF Q4 Spark Arrestor Muffler - 042156

Instructions - PDF Instructions - PDF Instructional PDF
Owners Manual - PDF Owners Manual - PDF Manual PDF