2Bros Parts

Q4 Exhaust Silencer 00-22 Kawasaki Suzuki 400 DR-Z S SM KLX SR - FMF 043377

$470.33

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Out of Stock

FMF Racing's Q4 043377 slip-on exhaust system sets new standards in quiet performance for off-road use. Designed with advanced chambering, precision baffles, and innovative multi-stage packing material, this exhaust ensures exceptional noise reduction without compromising power delivery. The Q4 is built with aircraft-grade aluminum and robust stainless steel for durability and reliability. It is suitable for use with both FMF and OEM headers and features an included removable spark arrestor and a lightweight construction for performance gains. Developed through years of championship-level off-road racing experience, it offers superior noise control with a maximum sound output of 96dB (most models below 93dB). The construction includes a high-strength stainless steel midpipe and endcap. It comes with a removable screen-type spark arrestor and a quiet insert for versatility. This product is designed for closed-course use only. Item ID: 043377. Type: Slip-On. Configuration: Single. Material: Aluminum canister with stainless steel midpipe and endcap. Finish: Natural. Spark Arrestor: Screen insert, included. Quiet Insert: Included. Carb Warning: Yes. Weight: Approximately 6.9 lbs (3.1 kg).

Specifications
SKU
06-1671.FMF.Q4
Brand
FMF Exhausts
Availability
Out of Stock

Fitments (102)

MakeModelYear
KAWASAKIKLX 4002003
KAWASAKIKLX 4002004
KAWASAKIKLX 400SR2003
KAWASAKIKLX 400SR2004
KAWASAKIKLX SR 4002003
KAWASAKIKLX SR 4002004
SUZUKIDR Z S 4002000
SUZUKIDR Z S 4002001
SUZUKIDR Z S 4002002
SUZUKIDR Z S 4002003
SUZUKIDR Z S 4002004
SUZUKIDR Z S 4002005
SUZUKIDR Z S 4002006
SUZUKIDR Z S 4002007
SUZUKIDR Z S 4002008
SUZUKIDR Z S 4002009
SUZUKIDR Z S 4002010
SUZUKIDR Z S 4002011
SUZUKIDR Z S 4002012
SUZUKIDR Z S 4002013
SUZUKIDR Z S 4002014
SUZUKIDR Z S 4002015
SUZUKIDR Z S 4002016
SUZUKIDR Z S 4002017
SUZUKIDR Z S 4002018
SUZUKIDR Z S 4002019
SUZUKIDR Z SM 4002005
SUZUKIDR Z SM 4002006
SUZUKIDR Z SM 4002007
SUZUKIDR Z SM 4002008
SUZUKIDR Z SM 4002009
SUZUKIDR Z SM 4002010
SUZUKIDR Z SM 4002011
SUZUKIDR Z SM 4002012
SUZUKIDR Z SM 4002013
SUZUKIDR Z SM 4002014
SUZUKIDR Z SM 4002015
SUZUKIDR Z SM 4002016
SUZUKIDR Z SM 4002017
SUZUKIDR Z SM 4002018
SUZUKIDR Z SM 4002019
SUZUKIDR-Z 4002000
SUZUKIDR-Z 4002001
SUZUKIDR-Z 4002002
SUZUKIDR-Z 4002003
SUZUKIDR-Z 4002004
SUZUKIDR-Z 4002005
SUZUKIDR-Z 4002006
SUZUKIDR-Z 4002007
SUZUKIDR-Z 4002008
SUZUKIDR-Z 4002009
SUZUKIDR-Z 4002010
SUZUKIDR-Z 4002011
SUZUKIDR-Z 4002012
SUZUKIDR-Z 4002013
SUZUKIDR-Z 4002014
SUZUKIDR-Z 4002015
SUZUKIDR-Z 4002016
SUZUKIDR-Z 4002017
SUZUKIDR-Z 4002018
SUZUKIDR-Z 4002019
SUZUKIDR-Z 4002020
SUZUKIDRZ 400S2000
SUZUKIDRZ 400S2001
SUZUKIDRZ 400S2002
SUZUKIDRZ 400S2003
SUZUKIDRZ 400S2004
SUZUKIDRZ 400S2005
SUZUKIDRZ 400S2006
SUZUKIDRZ 400S2007
SUZUKIDRZ 400S2008
SUZUKIDRZ 400S2009
SUZUKIDRZ 400S2010
SUZUKIDRZ 400S2011
SUZUKIDRZ 400S2012
SUZUKIDRZ 400S2013
SUZUKIDRZ 400S2014
SUZUKIDRZ 400S2015
SUZUKIDRZ 400S2016
SUZUKIDRZ 400S2017
SUZUKIDRZ 400S2018
SUZUKIDRZ 400S2019
SUZUKIDRZ 400S2020
SUZUKIDRZ 400S2021
SUZUKIDRZ 400S2022
SUZUKIDRZ 400SM2005
SUZUKIDRZ 400SM2006
SUZUKIDRZ 400SM2007
SUZUKIDRZ 400SM2008
SUZUKIDRZ 400SM2009
SUZUKIDRZ 400SM2010
SUZUKIDRZ 400SM2011
SUZUKIDRZ 400SM2012
SUZUKIDRZ 400SM2013
SUZUKIDRZ 400SM2014
SUZUKIDRZ 400SM2015
SUZUKIDRZ 400SM2016
SUZUKIDRZ 400SM2017
SUZUKIDRZ 400SM2018
SUZUKIDRZ 400SM2019
SUZUKIDRZ 400SM2020
SUZUKIDRZ 400SM2021
General Product Group
Exhaust Systems & Parts
General Product Type
Silencer
Variant Id
209081
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

FMF Racing Q4 Exhaust Silencer

The FMF Racing Q4 043377 slip-on exhaust silencer is engineered for exceptional quiet performance in off-road applications. Utilizing advanced chambering, precision baffles, and a multi-stage packing material, this silencer significantly reduces noise output without sacrificing power. Constructed from aircraft-grade aluminum and robust stainless steel, the Q4 offers race-proven durability and reliability for demanding conditions. It is designed for use with both FMF and OEM headers and includes a removable spark arrestor and quiet insert for enhanced versatility.

Key Features:

  • Developed through extensive championship-level off-road racing experience.
  • Delivers superior noise control, typically below 96dB for most models (often under 93dB).
  • Crafted with aircraft-grade aluminum for a lightweight design.
  • Features a high-strength stainless steel midpipe and endcap for extended durability.
  • Compatible with FMF or Original Equipment Manufacturer (OEM) exhaust headers.
  • Includes a removable screen-type spark arrestor and a quiet insert for customizable performance.
  • Designed exclusively for closed-course competition use.
  • Employs comprehensive packing technology for optimal silencing efficiency.
  • Designed for straightforward slip-on installation.

Specifications:

  • Item Identification Number: 043377
  • Type: Slip-On Silencer
  • Configuration: Single exhaust system
  • Materials: Aluminum canister with stainless steel midpipe and endcap
  • Finish: Natural aluminum
  • Spark Arrestor: Removable screen insert, included
  • Quiet Insert: Included
  • Emissions Warning: Carb Warning applies
  • Approximate Weight: 6.9 lbs (approximately 3.1 kg)
Before you buy

QUESTIONS? JUST ASK

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

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

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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.

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Out of stock