2Bros Parts

Q4 Hex Exhaust Silencer 07-16 KTM Husaberg Husqvarna 250-501 - FMF 045556

$466.37

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Out of Stock

The FMF Q4 HEX S/A 045556 exhaust represents the next evolution in off-road performance, delivering class-leading quiet technology without sacrificing power. Meticulously engineered with advanced chambers, baffles, and proprietary multistage packing material, the Q4 HEX provides substantial power gains across the entire rpm range while maintaining noise levels that meet stringent USFS and FIM World Enduro regulations. Designed specifically for the rigours of off-road use, it offers a robust, lightweight construction that is pounds lighter than stock systems and includes a spark arrestor for trail legality. Features include superior noise reduction with a 94dB insert (included), tangible power gains throughout the rpm range, compatibility with USFS and FIM World Enduro sound standards, a spark arrestor screen insert for added safety, a durable off-road ready design, and significantly lighter weight than OEM exhausts. This is a dedicated quiet exhaust system manufactured in the USA. Specifications include Item ID: 045556, Type: Slip-On, Configuration: Single, Construction: Aluminium with a Natural finish, Midpipe: Stainless Steel, Endcap: Stainless Steel, Spark Arrestor: Screen Insert (included), Quiet Insert: 94dB insert (included), and Weight: 4.9 lbs. Not for highway use.

Specifications
SKU
06-1750.FMF.Q4H
Brand
FMF Exhausts
Availability
Out of Stock

Fitments (131)

MakeModelYear
HUSABERGFE 2502013
HUSABERGFE 2502014
HUSABERGFE 3502013
HUSABERGFE 3502014
HUSABERGFE 5012013
HUSABERGFE 5012014
HUSQVARNAFE 2502014
HUSQVARNAFE 2502015
HUSQVARNAFE 2502016
HUSQVARNAFE 3502014
HUSQVARNAFE 3502015
HUSQVARNAFE 3502016
HUSQVARNAFE 4502015
HUSQVARNAFE 4502016
KTM250 EXC-F2012
KTM250 EXC-F2013
KTM250 EXC-F2014
KTM250 EXC-F2015
KTM250 EXC-F2016
KTM250 EXC-F SIX DAYS2014
KTM250 EXC-F SIX DAYS2015
KTM250 EXC-F SIX DAYS2016
KTM250 SX-F2009
KTM250 SX-F2010
KTM250 SX-F2011
KTM250 SX-F2012
KTM250 SX-F2013
KTM250 SX-F2014
KTM250 SX-F2015
KTM250 XC-F2009
KTM250 XC-F2011
KTM250 XC-F2013
KTM250 XC-F2014
KTM250 XC-F2015
KTM250 XCF-W2009
KTM250 XCF-W2010
KTM250 XCF-W2011
KTM250 XCF-W2012
KTM250 XCF-W2013
KTM250 XCF-W2014
KTM250 XCF-W2015
KTM250 XCF-W2016
KTM350 SX-F2011
KTM350 SX-F2012
KTM350 SX-F2013
KTM350 SX-F2014
KTM350 SX-F2015
KTM350 XC-F2011
KTM350 XC-F2012
KTM350 XC-F2013
KTM350 XC-F2014
KTM350 XC-F2015
KTM350 XCF-W2012
KTM350 XCF-W2013
KTM350 XCF-W2014
KTM350 XCF-W2015
KTM350 XCF-W2016
KTM400 XC-W2009
KTM400 XC-W2010
KTM450 EXC2009
KTM450 EXC2010
KTM450 EXC2011
KTM450 EXC2012
KTM450 EXC2013
KTM450 EXC2014
KTM450 EXC2015
KTM450 EXC2016
KTM450 EXC R2008
KTM450 EXC-R2008
KTM450 SMR2013
KTM450 SX F FACTORY EDITION2012
KTM450 SX F FACTORY EDITION2013
KTM450 SX F FACTORY EDITION2014
KTM450 SX-F2007
KTM450 SX-F2008
KTM450 SX-F2009
KTM450 SX-F2010
KTM450 SX-F2011
KTM450 SX-F2012
KTM450 SX-F2013
KTM450 SX-F2014
KTM450 SX-F2015
KTM450 SXF FACTORY EDITION2012
KTM450 SXF FACTORY EDITION2013
KTM450 SXF FACTORY EDITION2014
KTM450 XC-F2009
KTM450 XC-F2013
KTM450 XC-F2014
KTM450 XC-F2015
KTM450 XC-W2009
KTM450 XC-W2010
KTM450 XC-W2012
KTM450 XC-W2013
KTM450 XC-W2014
KTM450 XC-W2015
KTM450 XC-W2016
KTM450 XCRW2008
KTM500 EXC2012
KTM500 EXC2013
KTM500 EXC2014
KTM500 EXC2015
KTM500 EXC2016
KTM500 XC-W2013
KTM500 XC-W2014
KTM500 XC-W2015
KTM500 XC-W2016
KTM500 XCF-W2012
KTM500 XCF-W2013
KTM500 XCF-W2014
KTM505 SX-F2008
KTM505 XC-F2008
KTM505 XC-F2009
KTM530 EXC2009
KTM530 EXC2010
KTM530 EXC2011
KTM530 EXC R2008
KTM530 EXC-R2008
KTM530 XC-W2009
KTM530 XC-W2010
KTM530 XC-W2011
KTM530 XC-W2012
KTM530 XC-W2013
KTM530 XC-W2014
KTM530 XC-W2015
KTM530 XC-W2016
KTM530 XC-W2017
KTM530 XC-W2018
KTM530 XC-W2019
KTM530 XC-W2020
KTM530 XCR W2008
KTM530 XCRW2008
General Product Group
Exhaust Systems & Parts
General Product Type
Silencer
Variant Id
209282
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

FMF Q4 Hex Exhaust Silencer

The FMF Q4 HEX S/A exhaust represents the next evolution in off-road performance, delivering class-leading quiet technology without sacrificing power. Meticulously engineered with advanced chambers, baffles, and proprietary multistage packing material, the Q4 HEX provides substantial power gains across the entire rpm range while maintaining noise levels that meet stringent USFS and FIM World Enduro regulations. Designed specifically for the rigours of off-road use, it offers a robust, lightweight construction that is pounds lighter than stock systems and includes a spark arrestor for trail legality.

Key Features

  • Superior noise reduction with 94dB insert (included)
  • Delivers tangible power gains throughout the rpm range
  • Compatible with USFS and FIM World Enduro sound standards
  • Spark arrestor screen insert included for added safety
  • Durable, off-road ready design
  • Significantly lighter than OEM exhausts
  • Dedicated quiet exhaust system manufactured in the USA

Specifications

  • Type: Slip-On
  • Configuration: Single
  • Construction Material: Aluminium
  • Midpipe Material: Stainless Steel
  • Endcap Material: Stainless Steel
  • Spark Arrestor Type: Screen Insert (included)
  • Quiet Insert: 94dB insert (included)
  • Weight: 4.9 lbs

Note: This part is for closed course use only and is not intended for highway use.

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Call us+44 330 133 3748
Email us[email protected]

Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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