2Bros Parts

Q4 Hex Exhaust Silencer 21-24 Kawasaki KX 250 F X - FMF 042393

£423.77

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The FMF Q4 HEX S/A 042393 is a slip-on exhaust system designed for off-road riding. It features advanced chambering, baffles, and multi-stage packing material to deliver power gains across the RPM spectrum while adhering to noise regulations. This exhaust is lighter than stock and includes a built-in spark arrestor, making it suitable for riders seeking durable, low-sound performance. It meets USFS and FIM World Enduro sound requirements. Construction includes an aluminium body with stainless steel midpipe and endcap. Specifications include a weight of 6.9 lbs. Notice: Closed Course Use Only. Item ID: 042393. Configuration: Single. Spark Arrestor: Screen Insert (included). Quiet Insert: Included. Carb Warning: No. Manufactured in the USA.

Specifications
SKU
06-9950.FMF.Q4H
Brand
FMF Exhausts
Availability
In Stock (2)

Fitments (9)

MakeModelYear
KAWASAKIKX 250F2021
KAWASAKIKX 250F2022
KAWASAKIKX 250F2023
KAWASAKIKX 250F2024
KAWASAKIKX 250X2021
KAWASAKIKX 250X2022
KAWASAKIKX 250X2023
KAWASAKIKX 250X2024
KAWASAKIKXF 2502021
General Product Group
Exhaust Systems & Parts
General Product Type
Silencer
Variant Id
299096
Delivery2–4 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 system is engineered to deliver exceptional performance while adhering to strict noise regulations for off-road riding. It utilizes advanced chambering, baffles, and a proprietary multi-stage packing material to achieve significant power gains across the entire RPM range. This slip-on system is designed to be lighter than stock, contributing to improved handling and responsiveness. The integrated spark arrestor enhances safety, making it an ideal choice for riders seeking durable, compliant, and quiet performance. Proudly manufactured in the USA, this exhaust system is built to withstand demanding off-road conditions.

Key Features:

  • Incorporates quiet technology for reduced sound output and improved access to noise-controlled areas.
  • Meets USFS and FIM World Enduro sound requirements for legal off-road use.
  • Delivers substantial power increases across the entire RPM range.
  • Includes an integrated spark arrestor for enhanced safety.
  • Lighter than most OEM systems, improving machine handling and responsiveness.
  • Robust construction built for demanding off-road conditions.
  • The only US manufacturer providing purpose-built quiet exhausts.
  • Manufactured in the USA.

Specifications:

  • Item ID: 042393
  • Type: Slip-On
  • Configuration: Single
  • Construction Material: Aluminium
  • Finish: Natural
  • Midpipe Material: Stainless Steel
  • Endcap Material: Stainless Steel
  • Spark Arrestor: Screen Insert (included)
  • Quiet Insert: Included
  • Weight: 6.9 lbs

Note: This product is intended for Closed Course Use Only.

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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.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details

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