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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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    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

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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0 of 0 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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0 of 0 people found this review helpful.

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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2 of 2 people found this review helpful.

Good slip on.

Comments On Apr 05, 2012:Fit was a little off. I talked with FMF about it and they said my subframe must be bent. My bike was brand new and it didn't fit my practice bike correctly either. I modded it to make it fit. I would still buy another FMF product. Just not really happy with FMF customer service.

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0 of 0 people found this review helpful.

2011 KX450

Comments On Feb 18, 2012:Great quality pipe and sounds nice, it looks better than stock and it around the same weight may be slighty quieter than the stock pipe but has a much better note, only issue is the sticker on the side lasted about 2 hours before it melted off leaving a burned on brown mark on the side which looks terrible other than that its awesome

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0 of 0 people found this review helpful.

Rmx 450z

Comments On Jun 14, 2011:Added one to my rmx450 quietens it down 40% I think. But seems to rev differently and no longer as much fun to ride. Stock pipe provided a heap more power...It felt like anyway. I am about to dismantle now ,used it once, to try and find some more power. Would be interesting to see on a dyno.
Additional Comments On Nov 12, 2011:Pipe has SNAPPED in the mid section.
AND Bracket has fallen OFF...so I have THROWN IT IN THE BIN. IN 4 months of average Trail riding.
CHEAPLY MADE stick to stock or another brand .

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0 of 0 people found this review helpful.

2009 CRF150RB

Comments On Sep 15, 2011:Made this beast shut up and run great. Hard hitting bottom end with powerbomb header.

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2007400EX FIT

Comments On Sep 12, 2011:The collar that connects the header with the pipe does not fit well. Other than that, a nice exhaust. Always great customer service,

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Instructional

How To Repack A Silencer For Your ATV Or Motorcycle

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