2Bros Parts

Factory 4.1 RCT Exhaust Silencer 05-17 Honda CRF 450 X - FMF 041517

$624.29

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Out of Stock

The FMF Factory 4.1 RCT Stainless Slip-On with Carbon End Cap combines Resonance Chamber Technology RCT with a refined, compact design. This slip-on is engineered with aerospace-grade materials and manufactured in Southern California. It delivers significant power gains throughout the rev range, substantial weight savings, and optimised mass centralisation for enhanced handling. Features include a natural aluminium muffler with a carbon end cap, a screen-type spark arrestor, and a 94dB quiet insert. It uses Factory Forward Engineering for reduced muffler length, improved mass centralisation, and crash resistance. The Rapid Tuning System RTS allows for easy adjustments. Specifications include item ID 041517, slip-on type, single configuration, aluminium construction with a natural finish, stainless steel midpipe, and carbon fibre endcap. It includes a screen spark arrestor and a 94dB quiet insert. The weight is 5 lbs. This product is for closed course use only.

Specifications
SKU
06-1724.FMF.F4N
Brand
FMF Exhausts
Availability
Out of Stock

Fitments (11)

MakeModelYear
HONDACRF 450X2005
HONDACRF 450X2006
HONDACRF 450X2007
HONDACRF 450X2008
HONDACRF 450X2009
HONDACRF 450X2012
HONDACRF 450X2013
HONDACRF 450X2014
HONDACRF 450X2015
HONDACRF 450X2016
HONDACRF 450X2017
General Product Group
Exhaust Systems & Parts
General Product Type
Silencer
Variant Id
209176
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

FMF Factory 4.1 RCT Exhaust Silencer - Performance and Style

Elevate your motorcycle's performance and aesthetics with the FMF Factory 4.1 RCT Stainless Slip-On. This expertly engineered exhaust system combines advanced Resonance Chamber Technology™ with a sleek, compact design, offering significant power gains and a noticeable reduction in weight for enhanced handling.

Key Features:

  • Features FMF's latest Resonance Chamber Technology™ (RCT) for optimised performance.
  • Factory Forward Engineering™ contributes to improved mass centralisation and impact resistance.
  • Constructed using aerospace-grade materials for exceptional durability and high performance.
  • Boasts a natural aluminium muffler with a premium carbon fibre end cap.
  • Delivers substantial horsepower increases across the entire RPM range.
  • Significantly reduces overall motorcycle weight for improved agility.
  • Equipped with a Rapid Tuning System (RTS) for straightforward adjustments.
  • Includes both a screen-type spark arrestor and a 94dB quiet insert for versatility.
  • Proudly manufactured in Southern California.
  • Designed for closed course use only.

Specifications:

  • Type: Slip-On
  • Configuration: Single
  • Muffler Construction: Aluminium
  • Muffler Finish: Natural
  • Midpipe Material: Stainless Steel
  • Endcap Material: Carbon fibre
  • Spark Arrestor: Integrated screen insert
  • Quiet Insert: 94dB insert included
  • Approximate Weight: 5 lbs
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.

More answers in our FAQ.

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Out of stock