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Stainless Steel Q4 Hex spark Arrestor Slip-On Muffler - 045590

  • Part #:
    436664
  • Mfg Part #:
    045590
  • OEM/Ref#:
1 / 4

FMF

Stainless Steel Q4 Hex spark Arrestor Slip-On Muffler - 045590

  • Part #:
    436664
  • Mfg Part #:
    045590
  • OEM/Ref#:
MSRP: $379.99

Price: $341.99 10% off!
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FMF Stainless Steel Q4 Hex spark Arrestor Slip-On Muffler - 045590
  • The Q series features advanced engineering to precisely locate baffles and chambers to absorb sound
  • Less mass to enhance power-to-weight ratio
  • Quiet power with minimal sacrifice for performance
  • Q4 slip-on muffler unless noted

Q4 HEX

  • Less sound equals more ground
  • Meets FIM World Enduro sound regulations
  • Power gains throughout the entire rpm range
  • Spark arrestor included
  • Pounds lighter than stock
  • Rugged design for off-road endurance
  • Made in the U.S.A.

NOTE: FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE.



Included Items:

(1) Stainless steel muffler W/-mid-pipe and spark arrestor installed

(1) Aluminum spacer

Instructions 

Specifications
Part #: 436664
Mfg #: 045590
Color - Primary Silver
Style Canister Muffler
Type Muffler/Silencer w/Spark Arrestor
Units Each
Weight 6.60 lbs
Alternate/OEM Part Number(s):
18211717
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Resources & Manuals
Fitment for FMF Stainless Steel Q4 Hex spark Arrestor Slip-On Muffler - 045590

Part 436664 fits the following machines

Husqvarna
  • FC250 2016-2018
  • FC350 2016-2018
  • FC450 2016-2018
  • FC450 Rockstar Edition 2018
  • FE250 2017-2018
  • FE350 2017-2018
  • FE450 2017-2018
  • FX350 2017-2018
  • FX450 2017-2018
KTM
  • 250 EXC-F 2017-2019
  • 250 SX-F 2016-2018
  • 250 SX-F Factory Edition 2015-2016
  • 250 XC-F 2016-2018
  • 350 EXC-F 2017-2019
  • 350 SX-F 2016-2018
  • 350 XC-F 2016-2018
  • 450 EXC-F Six Days 2017
  • 450 SX-F 2016-2018
  • 450 XC-F 2016-2018
Reviews & Questions
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Browse 1 question Browse 1 question and 1 answer
Is this quieter than stock?
Hoagie on Dec 18, 2016
BEST ANSWER: I am unaware of your stock DB level. Contact FMF for accurate sound information:

http://www.fmfracing.com/Info/Contact
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