FMF Q Stealth Spark Arresor Silencer

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Rating 4.53 of 5 (11 Reviews)

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Product Information

FMF Q Stealth Spark Arresor Silencer

FMF has made it clear that they love 2-strokes, and are backing it up by adding an all-new muffler design to their line up. Don Emler headed up the Q-Stealth personally, because he loves to ride 2-strokes and is dedicated to reducing noise levels. The Q-Stealth is living proof FMF is the only exhaust company committed to bringing new technology to the 2-stroke enthusiast. 

Features:
  • Q technology maximized
  • Quiet on the trail as well as on the sound meter
  • No power loss
  • More packing volume-longer time between repacks
  • USFS approved spark arrestor
  • AMA and FIM enduro legal

Click Here for Additional Exhaust Information
  • Item # 13747
  • SKU #
  • Mfr. Part #

FitmentView All

Beta Models

  • 250 RR : 2014
  • 250 RR 2-Stroke : 2013, 2015
  • 300 RR : 2013–2015

Gas Gas Models

  • EC 250 Racing : 2010
  • EC 300 Race : 2010
  • EC250 : 2007, 2009–2010
  • EC300 : 2007, 2009–2010
  • XC250 : 2012–2014
  • XC300 : 2012–2014

Honda Models

  • 919 : 2006
  • CR250R : 2002–2007

Husaberg Models

  • TE 250 : 2012–2014
  • TE 300 : 2012–2014

Husqvarna Models

  • TC 250 : 2014–2015
  • TE 250 : 2014–2015
  • TE 300 : 2014
  • TE250 : 2012
  • WR250 : 2009–2012
  • WR300 : 2009–2012

Kawasaki Models

  • KLR650 : 2008–2009
  • KX250 : 2003–2007

KTM Models

  • 200 EXC : 2004–2005, 2010
  • 200 SX : 2003–2004
  • 200 XC : 2006–2009
  • 200 XC-W : 2006–2015
  • 250 EXC : 2004–2005, 2010
  • 250 SX : 2003–2016
  • 250 XC : 2006–2016
  • 250 XC-F : 2007–2009
  • 250 XC-W : 2006–2015
  • 300 EXC : 2003–2006, 2010
  • 300 MXC : 2004–2005
  • 300 XC : 2006–2016
  • 300 XC-W : 2006–2015

Suzuki Models

  • RM250 : 2003–2008
  • RM250 Carmichael Edition : 2006

Yamaha Models

  • YZ250 : 2002–2016

Product Reviews 1 - 11 of 11

Overall Rating: 4.53 of 5

(11 Reviews)
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What Other Riders Are Saying...

Fit

Quality

Sound

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Performance

Spend less, get the Turbinecore 2

Typical great FMF quality, fit and finish. But... heavy and sound volume seems the same as Turbinecore 2 and PC silencers. I couldn't tell the difference nor could my buddy. Save some green and go with a less expensive SA. 2007 Yamaha YZ250

Sam - October 15, 2015

(Junction City, OR)

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Recommended

I was worried that this silencer would look overly huge and cause my bike to sound corked-up, but was happy to find that not the case. The mounting bolts supplied for my bike (Suzuki RM250) weren't the right lengths, so I needed to use my own, otherwise this seems like a quality product. It looks good and can recommend it.

Rider - December 4, 2013

(San Jose, CA)

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Can't tell the difference in sound

Bike- '07 Yamaha YZ250. Former silencer was a PC Nature Friendly Spark Arrestor. I gave this silencer 5 stars all the way around even though it wasn't any quieter. It's fairly quiet but I was unable to detect any difference in sound level compared to the PC. Typical high quality FMF product.

Sam - February 12, 2013

(Junction City, OR)

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Fmf stealth on 200xcw

Simple install good quality product as usual with FMF decent price wasn't as quiet as I thought wouldn't say a big difference in sounds compared to stock

Logan s. - October 29, 2012

(Sarasota, FL)

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FMF Q stealth on 2005 300 MXC

Great pipe, sound level was 91db on the first hare scramble, power down low improved... a real good choice

Bill - August 30, 2011

(Adams, MA)

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Q Stealth

A very nice quality silencer. Fit perfectly and sounds sweet. I used some Hi-Temp black silicone on the gasket and no seepage.

John - July 14, 2011

(Jacksonville, FL)

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Performance

FMF Q-Stealth Spark Arrestor/Silencer

Bike: 2008 KTM 300XC. Typical excellent FMF fit, finish, and overall quality. I was surprised at how much it reduced sound. Great tonal quality. I have not adjusted jetting yet. The overall power has not been reduced--but it has shifted a bit. The bike is stronger down low, but has a smoother low-to-mid transition. This makes the bike easier to ride in technical sections, but takes away some of the fun factor. Top-end power seems the same. Rejetting is highly recommended for full benefits. The pipe-to-silencer junction seeps oil gunk--needs to be siliconed for a tight seal. Also belches more oil from exhaust than stock--again, I need to rejet to clean up more. Bottom line: We're pissing off more and more people that don't ride, and losing off-road riding opportunities daily. If you want a quieter bike w/out losing power, this is it. Highly recommended.

Tom - November 3, 2010

(Keller, TX)

Fit

Quality

Sound

Install

Performance

FMF Q-Stealth Spark Arrestor/Silencer

Bike: 2008 KTM 300XC Typical excellent FMF fit, finish, and overall quality. I was surprised at how much it reduced sound. Great tonal quality. I have not adjusted jetting yet. The overall power has not been reduced--but it has shifted a bit. The bike is stronger down low, but has a smoother low-to-mid transition. This makes the bike easier to ride in technical sections, but takes away some of the fun factor. Top-end power seems the same. Rejetting is highly recommended for full benefits. The pipe-to-silencer junction seeps oil gunk--needs to be siliconed for a tight seal. Also belches more oil from exhaust than stock--again, I need to rejet to clean up more. Bottom line: We're pissing off more and more people that don't ride, and losing offroad riding opportunities daily. If you want a quieter bike w/out losing power, this is it. Highly recommended.

Tom - October 27, 2010

(Keller, TX)

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FMF Q on a 2006 KTM 300 XCW

I decided to replace the turbine core to cut the noise level a bit and make sure I passed sound at the enduros. It fit better than the turbine core that was on the bike as it rubbed on the shock spring. Noise level does not seem much quieter than the turbine core. Weight seems pretty close. Performance is unchanged; if anything it seems a little smoother than the TC.

Bruce - September 30, 2010

(Sacramento, CA)

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FMF Q-stealth

Looks good, sounds great and performs even better. Comes on strong in mid to high on the track but still good for trail riding.

steve - October 19, 2009

(Nampa, ID)

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SWEET!

I went from stock to this on my 03'cr250 paired with an sst pipe. I ride mainly single track and this setup works great really rips when you get the r's up in the pipe, not as quiet as I thought it would be but nice sound

Joe - August 24, 2009

(Fraser, CO)