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FMF Q-Stealth Silencer
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FMF Q-Stealth Silencer

Our price: $170.99

MSRP: $189.99 - You save up to $19.00 (10% off)

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  • "Customer service is priority #1 at Rocky Mountain ATV/MC. We value our customers and strive to be the best shopping experience- when you buy from us, you are buying lifetime service."

    -Dan Thomas, CEO and Founder

  • Returns

    We take pride in offering no hassle returns. In the event of a return, please call, email or chat with us to receive a solution to the problem. For apparel that doesn't fit quite right, Click here to see our Fit Guaranteed Program.

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    We will stand behind all products we sell with regards to manufacturing defects in workmanship and material. Most products are limited to the manufacturer's warranty. However, we will do everything in our power to take care of the problem.

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    Call us: 1 800 336-5437
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    FMF has made it clear that we love 2-strokes, and they're 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.
  • 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.

FMF Q-Stealth Silencer Reviews

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0 of 0 people found this review helpful.

Noticeable power increase

Comments On Oct 07, 2015:I upgraded from Turbine Core II Silencer to the Q-Stealth Silencer and noticed and increase in power from idle to mid range. I ride mostly tight single track so can't comment on upper rpm range. Spark arrestor and much quieter, which is better for all of us.

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0 of 0 people found this review helpful.

A not-so-good fit

Comments On Apr 27, 2015:Just installed this on my 2014 300 xc-w. I would love to give it five stars, having spent as much as I did on it, but I can't. The fit isn't perfect as I pair it to the stock header pipe. I had to tweak it, putting unwanted pressure on the header a certain way. It took the force of the two mounting bolts to get it in position. In other words, I couldn't just hold it in its proper position. I had to put pressure on it with one hand and use the other hand to get the bolts in straight. I would like to think fmf could be closer on their specs than that. Maybe the pipe will fit better to an fmf header - I don't know - but I'm not real happy with the way it fits to the stock.

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0 of 0 people found this review helpful.

Quiet but a loss of top end

Comments On Feb 12, 2015:I Tested the q stealth against the stocker at my local track and noticed a very significant loss in top end. It was fine low to mid but was definitely not pleased with top end.

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0 of 0 people found this review helpful.

Super quiet

Comments On Feb 10, 2015:Super quiet with no power loss

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0 of 0 people found this review helpful.

No power loss and quiet

Comments On Oct 17, 2014:I just put the silencer on today took it for a 2hr ride no power loss. I don't understand why KTM can't put it stock on the bike? It is a different sound lower. I like the fit and finish what you would expect from FMF. The only complaint is I had to wait 3months on back order.

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0 of 0 people found this review helpful.

nice and quiet

Comments On May 07, 2014:I had a turbine core that was broken inside. With the new silencer it is really quiet at idle, but still gets loud when you get on it. The tone is deeper too.

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0 of 1 people found this review helpful.

Super quiet and tough.

Comments On Jan 22, 2014:The Q-Stealth is a really good silencer. It has held up really well and after a year I went to put new packing in and it still looked pretty good. It's very easy to work on and super quiet.

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1 of 1 people found this review helpful.

Works great

Comments On Dec 28, 2013:on my '13 250xcw. Has a spark arrestor and is quiet to boot!

Additional Comments On Dec 28, 2013:has a spark arrestor and is quiet to boot!

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1 of 2 people found this review helpful.

Stealthy and a value

Comments On Aug 13, 2013:Excellent fitment, a little less sound, lower in tone, further between packing. I think they're a great value because it's hard to put a price on keeping riding areas open.

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0 of 2 people found this review helpful.

Big, bulky, heavy, poor fit.

Comments On Jul 06, 2013:I was barely able to mount mine up without moving the mounts. They are off about 6mm.

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2 Stroke Silencer Install

Product Info

FMF Factory Fatty Pipe Sound Bite W/ Q-Stealth

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