2Bros Parts

Q4 Hex Exhaust Silencer 12-16 KTM EXC-F 350 EXC 500 - FMF 045442

$470.28

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Spread the cost with Klarna

1

The FMF Q4 HEX S/A 045442 is a high-performance, quiet slip-on silencer engineered for off-road use. It features advanced chambers, baffles, and proprietary multistage packing to deliver power gains across the entire RPM range. This silencer meets USFS and FIM sound regulations, includes an integrated spark arrestor, and is significantly lighter than stock. Constructed with a champagne anodized aluminium body, stainless steel midpipe and endcap, it offers rugged, endurance-inspired durability. Made in the USA. Item ID: 045442. Type: Slip-On. Configuration: Single. Weight: 5.0 lbs (approx. 2.27 kg). Notice: Closed Course Use Only.

Specifications
SKU
06-1759.FMF.QH
Brand
FMF Exhausts
Availability
In Stock (3)

Fitments (15)

MakeModelYear
KTM350 EXC-F2012
KTM350 EXC-F2013
KTM350 EXC-F2014
KTM350 EXC-F2015
KTM350 EXC-F2016
KTM500 EXC2012
KTM500 EXC2013
KTM500 EXC2014
KTM500 EXC2015
KTM500 EXC2016
KTM500 EXC-F2012
KTM500 EXC-F2013
KTM500 EXC-F2014
KTM500 EXC-F2015
KTM500 EXC-F2016
General Product Group
Exhaust Systems & Parts
General Product Type
Silencer
Variant Id
209337
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 is engineered for riders demanding high performance with reduced sound levels. Utilizing advanced chambers, baffles, and proprietary multistage packing, this slip-on silencer delivers impressive power gains across the RPM range while meeting stringent USFS and FIM sound regulations. Constructed with durability in mind, the Q4 HEX is significantly lighter than stock, features a built-in spark arrestor, and showcases a robust design suitable for off-road endurance.

Key Features

  • High-performance quiet technology for off-road use
  • Meets USFS and FIM World Enduro sound regulations
  • Power gains throughout the entire rev range
  • Integrated spark arrestor for fire safety
  • Reduced weight compared to OEM exhausts
  • Rugged, endurance-inspired construction
  • Made in the USA
  • Notice: Closed Course Use Only

Specifications

  • Type: Slip-On
  • Configuration: Single
  • Construction Material: Aluminium
  • Finish: Champagne Anodized
  • Midpipe Material: Stainless Steel
  • Endcap Material: Stainless Steel
  • Spark Arrestor: Screen Insert (included)
  • Approximate Weight: 5.0 lbs (2.27 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

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.

Trade pricing available

Buying parts for your business? Apply for a 2BrosParts trade account.

Apply for Trade
1