2Bros Parts

Factory 4.1 RCT Exhaust Silencer 19-23 KTM Husqvarna GasGas 250 EX MC FC SX-F XC-F - FMF 045632

£635.50

4.1 Trustpilot 99.9% positive on eBay

Free UK delivery 2–4 business days

Spread the cost with Klarna 18+, T&Cs apply

1

Experience advanced performance with the FMF Racing Factory 4.1 RCT Stainless Slip-On equipped with a lightweight carbon end cap. This slip-on utilises FMF’s Resonance Chamber Technology for increased power and reduced noise. The design emphasises centralised mass by positioning the muffler closer to the engine, reducing vulnerability to crash damage and enhancing handling. Precision-crafted in Southern California from aerospace-grade materials, the Factory 4.1 RCT ensures exceptional durability and substantial weight savings for closed-course competition. Features include FMF Resonance Chamber Technology, a shorter overall length to minimise crash exposure, optimised mass centralisation, an aerospace-grade natural aluminium muffler with carbon end cap, massive power gains across the RPM range, substantial weight savings, a Rapid Tuning System for easy adjustments, and a stainless steel midpipe. A removable screen-type spark arrestor and a 94dB quiet insert are included. Item ID 045632. Type Slip-On. Configuration Single. Construction Aluminium. Finish Natural. Midpipe Material Stainless Steel. End Cap Carbon Fibre. Spark Arrestor Screen Insert included. Quiet Insert 94dB Insert included. Weight 7.1 lbs. For closed course use only.

Specifications
SKU
06-9908.F4
Brand
FMF Exhausts
Availability
In Stock (3)

Fitments (18)

MakeModelYear
GASGASEX 250F2021
GASGASEX 250F2022
GASGASEX 250F2023
GASGASMC 250F2021
GASGASMC 250F2022
GASGASMC 250F2023
HUSQVARNAFC 2502019
HUSQVARNAFC 2502020
HUSQVARNAFC 2502021
HUSQVARNAFC 2502022
KTM250 SX-F2019
KTM250 SX-F2020
KTM250 SX-F2021
KTM250 SX-F2022
KTM250 XC-F2019
KTM250 XC-F2020
KTM250 XC-F2021
KTM250 XC-F2022
General Product Group
Exhaust Systems & Parts
General Product Type
Silencer
Variant Id
287712
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

FMF Racing Factory 4.1 RCT Stainless Slip-On Exhaust with Carbon End Cap

Elevate your motorcycle's performance with the FMF Racing Factory 4.1 RCT Stainless Slip-On. This exhaust system is engineered with FMF's innovative Resonance Chamber Technology™ to deliver increased power output while maintaining a controlled sound level. Its design prioritizes mass centralization by positioning the muffler closer to the engine, which not only enhances handling but also provides greater protection against potential crash damage.

Precision-manufactured in Southern California using aerospace-grade materials, the Factory 4.1 RCT offers exceptional durability and significant weight savings, making it an ideal choice for closed-course competition.

Key Features:

  • Features FMF Resonance Chamber Technology™ for optimal performance.
  • Shorter overall length to reduce exposure to impacts.
  • Muffler placement designed for improved mass centralization.
  • Constructed with an aerospace-grade natural aluminium muffler and a lightweight carbon fiber end cap.
  • Delivers substantial power gains across the entire RPM range.
  • Provides significant weight reduction for enhanced agility.
  • Equipped with the Rapid Tuning System (RTS) for straightforward adjustments.
  • Includes a stainless steel midpipe for robust construction and extended lifespan.
  • Comes with a removable screen-type spark arrestor.
  • Includes a 94dB quiet insert for noise reduction.
  • Note: For closed course use only.

Specifications:

  • Item ID: 045632
  • Type: Slip-On
  • Configuration: Single
  • Muffler Construction: Aluminium
  • Muffler Finish: Natural
  • Midpipe Material: Stainless Steel
  • End Cap Material: Carbon Fibre
  • Spark Arrestor: Screen Insert (Included)
  • Quiet Insert: 94dB Insert (Included)
  • Weight: 7.1 lbs
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

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

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.

More answers in our FAQ.

Trade pricing available

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

Apply for Trade
1