FMF Hex Q4 S/A Silencer

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

Our Price: $309.59$341.99

MSRP: $379.99 - You save up to $70.40 (19% off)

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Details

    With FMF’s Hex Q4 S/A Silencer, you don’t have to choose between low sound and excellent power.

    FMF has always set itself apart by offering great options to lower your bike’s sound output. The Hex Q4 is no different. With a series of internal baffles, chambers, and sound-absorbing materials, FMF has created a silencer that accelerates exhaust flow while still keeping noise low. So low that most machines will come in well below 96 decibels with some models coming in as low as 92 decibels. While your sound is lowered you are still keeping all of your power, gaining significant weight savings over stock, and a USFS approved spark arrestor.

    So don’t compromise when you need to meet sound and safety regs. Pick up an FMF Hex Q4 S/A Silencer and ride wherever you want.

    Specs:
  • Meets USFS and FIM World Enduro sound regulations
  • No power loss in entire rpm range
  • USFS spark arrestor included
  • Weighs pounds less than stock
  • Rugged design thrives in off-road riding
  • Made in the USA
  • Can be used with stock or FMF header
  • Sound output under 96 dbs and may be as low as 92 dbs

FMF Hex Q4 S/A Silencer Reviews

Each review submitted enters you into a
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
 
4.5 / 5.0
19 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
13
4
1
1
0
Value
4.5 / 5
Durability
4.6 / 5
Ease of Installation
5.0 / 5
Fitment
5.0 / 5
Performance
4.8 / 5
Finish
5.0 / 5
Features
4.9 / 5
Recommend it?
Yes (7)
No (1)
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
great product
Bought this silencer for my 2014 Klx250s. It looked a hundred times better then stock and weighed a bit less. this silencer and the header in combo helped increase the power of the bike which was much needed. the silencer fit on very easily with slight modification to the bike.

-m-2014 KAWASAKI KLX250S--
December 23, 2017
Bangor, ME, US
Age: 25-44
Purchased
9 months ago
Gender:
Male
Weight:
131 - 160 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Great performance, light weight, not real loud
This muffler saves 2-1/2 pounds over the stock muffler. The sound is very pleasing, and not perceptibly louder than stock. Used in conjunction with the FMF Powerbomb header, delivers a smooth responsive power delivery. Fitment was easy, and fit and finish of this American made product is very good. Recommended.

-m-2006 HONDA CRF450X--
December 9, 2017
Simi Valley, CA, US
Age: 45-64
Purchased
3 months ago
Gender:
Male
Value
4 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Fmf slip on
Great very happy with increase power and great sound ot made riding more enjoyable great company only draw back os the price but you have to pay for quality

-m-2014 HONDA TRX 450ER--
November 19, 2017
Cherokee, TX, US
Age: 25-44
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Great Pipe
This pipe fit perfectly and sounds great and made here in So CAL, cant beat it.

-m-2016 YAMAHA WR450F--
November 6, 2017
San Diego, CA, US
Age: 25-44
Purchased
8 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
6'1 - 6'3
Value
3 / 5
Durability
3 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
4 / 5
Finish
5 / 5
Features
4 / 5
Recommend it?
No
'14 yz250f
This exhaust chokes up the initial throttle response, but opens up once you get into mid and top range. It was a very awkward sensation and forced me to ride higher in the rpm range. TECH NOTE: YOU MAY NEED TO REJET YOUR BIKE WHEN INSTALLING A NEW SILENCER OR EXHAUST SYSTEM.
September 20, 2017
Pensacola, VA, US
Purchased
6 months ago
Value
4 / 5
Durability
4 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
4 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Great fit, hopefully it's quieter than stock
I haven't ridden with it yet, but the fit and finish is very nice!

-m-2011 HONDA CRF250R--
Looks and fits great!
Looks and fits great!
August 30, 2017
Conifer, CO, US
Age: 25-44
Purchased
6 months ago
Gender:
Male
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Great Exhaust pipe
I ride a lot of single track in the pines. This exhaust gives me a longer range of low to mid and it allows me to lug the bike more without stalling. I find myself shifting less because of it. I recommend it.

-m-2016 BETA 350 RR--
April 3, 2017
Central, NJ, US
Age: 25-44
Purchased
11 months ago
Gender:
Male
Weight:
221 - 250 lbs.
Height:
5'7 - 5'9
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
2003YZ450F
Installed this Q4 in less than 10 minutes, they supply a spacer to make clearance between the number panel, which required a longer bolt. $0.60 at the hardware store. The look and overall fit is great. Slid right on to my power bomb. I didn't use any silicone at the connection and may not, it seems to be a tight fit, without leaks, but I may use some at some point. Sounds great and added more torque !! Highly recommended !!!

-m-YAMAHA YZ450F--
December 1, 2016
Goshen , IN, US
Age: 45-64
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'10 - 6'0
FMF Pipe
Simply the best! Way lighter than stock, more power than stock, nice and quiet as to not upset others on the trail and neighbors. Highly recommend!

Machine this part was bought for: 2008 HONDA CRF450
June 28, 2016
OR
Recommend getting a 4.1
The Q4 restricts the hell out of the engine with the screen in and without it, its unholy because of how loud it is. Not only that but it gives your bike a Cough-and-die syndrome. Entering the corners and exiting my bike would pop and die. Swapped to a 4.1 and it cured the cough and die and gave a much more noticeable power increase.

Machine this part was bought for: 2013 KTM 350 XC-
February 23, 2016
CA
Each question or answer submitted enters you into a:
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 3 questions Browse 3 questions and 24 answers
Is the spark arrestor removable?
Casey W on Jan 20, 2017
BEST ANSWER: Not without pulling the muffler apart, Q4 is a quiet type muffler and pulling out the SA defeats the purpose of this model muffler. You might be better off with different type of muffler?
Can I buy just this as a slip on?!
Keiser E on Nov 6, 2017
BEST ANSWER: Yes the pipe slips on. The instructions recommend putting some high gasket seal on the connection. You can reuse your stock clamp and hangers.
JUST INSTALLED ON A 2017 FE350. THIS DOESN'T SEEM TO BE UNDER 96DB, WAS THIS SUPPOSED TO BE SHIPPED WITH A QUIETER TIP?
Edward G on Jan 28, 2017
BEST ANSWER: No, it came with a spark arrestor that will drop the db a little bit, but that's it.
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