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FMF Q4 S/A Silencer
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FMF Q4 S/A Silencer

Our price: $260.99$323.99

MSRP: $289.99 - $359.99 - You save up to $36.00 (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

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    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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    The FMF Q4 S/A silencer offers a low sound output, yet it still offers exceptional power gains. The Q4 silencer puts out 94db or less and also has a USFS approved spark arrestor with no screen to clean or screen to burn through. The FMF Q4 S/A silencer has more packing volume so you have longer time between repacking. So take the noise out of riding with the Q4 S/A silencer and not the fun.
  • Developed over years of championship off-road racing. Constructed with aircraft grade aluminum and high strength stainless steel.
  • Max sound output 96db, most models below 93db.
  • Comes standard with spark arrestor. Easily serviced for repacking.
  • Use with stock or FMF head pipe.

FMF Q4 S/A Silencer Reviews

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0 of 0 people found this review helpful.

FMF Silencer

Comments On Jan 10, 2014:The silencer makes good power and meet a 98 dec sound test.

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Huge power gains!

Comments On Dec 31, 2013:I have this silencer on my 2013 RMZ450 and my 2009 RMZ450 and it is amazing. I pair it with a power-bomb head pipe and I notice big HP gains from bottom to top end. I believe it is much more quiet then stock but has a better sound. Two thumbs up FMF I would definitely recommend. My only complaint is that the sticker has started to peel off but I stuck it back down with heat resistant epoxy and it looks as good as new!

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0 of 1 people found this review helpful.

verry good product

Comments On Nov 21, 2013:verry good sound

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really woke up the bike

Comments On Aug 30, 2013:I put this on my DRZ, not know as a fast powerful bike by any means. The combination of this + the Q4 silencer and a rejetting of the carb significantly improved throttle response. Made the bike much easier to control sliding around on gravel corners, blip of the throttle allows me to control just the right amount of oversteer.

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Just what I expected

Comments On Jul 12, 2013:Looks great and went on easy. I also paired this silencer with a FMF Megabomb. The bike is a lot quieter with noticeable power gains.

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Comments On May 29, 2013:FMF Q4 with FMF jet kit really woke up my quad and saw noticable gains in power. I was expecting it to be alott louder like some competitors but it was not. If you are looking for a nice quiet pipe that give you power this is for you.

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1 of 1 people found this review helpful.

Nice Pipe

Comments On Mar 20, 2013:For my 05 CRF450R. A bit heavier than my old White Bros. pipe. Also, it did not fit with the White Bros. header so had to get a PowerBomb to go with it. That being said.... Fit was perfect and installation simple with no problems. It seems very slightly quieter than my old system. Power delivery down low is incredible, mid-range is better and top end seems about the same. Very happy with the system.

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1 of 1 people found this review helpful.

Quiet pipes RULE!

Comments On Mar 13, 2013:Virtually as quiet as stock, and you can feel the difference in power especially on low end. Most importantly, it looks way cooler than the beastly stocker!

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Love this FMF pipe

Comments On Mar 06, 2013:Great pipe and it does excatly what it states.. Last sound check was 92 db. Took 30 mintues of riding for the EFI and mapping to adjust on my wr450f and once it did, WOW!

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best always

Comments On Feb 25, 2013:silencer is awesome FMF rocks

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