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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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Additional Videos

FMF Factory Fatty Pipe Sound Bite W/ Q-Stealth

How to - 2 Stroke Silencer Install

RM YouTube Channel


    The Q-Stealth Silencer from FMF gives you performance, styling, and low sound output all from a company that loves supporting 2 strokes.

    FMF is dedicated to supporting 2 strokes and it shows with their constant updates to 2 stroke tech. One of their latest is the Q-Stealth Silencer. A silencer design headed up by Don Emler himself to produce the lowest sound output possible while still retaining all of your 2 stroke’s performance. The Q-Stealth combines low sound output and a USFS approved spark arrestor for a silencer that gets your smoker into any track or trail without removing all of its guts.

  • Aftermarket silencer for your 2 stroke
  • USFS approved spark arrestor
  • Quiet on the trail and track
  • No loss of performance or power
  • More time between repacks thanks to larger packing volume
  • 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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1 of 1 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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1 of 1 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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1 of 2 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 3 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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