Factory 4.1 RCT Exhaust Silencer 05-17 Honda CRF 450 X - FMF 041517
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
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.
- SKU
- 06-1724.FMF.F4N
- Brand
- FMF Exhausts
- Availability
- Out of Stock
Fitments (11)
| Make | Model | Year |
|---|---|---|
| HONDA | CRF 450X | 2005 |
| HONDA | CRF 450X | 2006 |
| HONDA | CRF 450X | 2007 |
| HONDA | CRF 450X | 2008 |
| HONDA | CRF 450X | 2009 |
| HONDA | CRF 450X | 2012 |
| HONDA | CRF 450X | 2013 |
| HONDA | CRF 450X | 2014 |
| HONDA | CRF 450X | 2015 |
| HONDA | CRF 450X | 2016 |
| HONDA | CRF 450X | 2017 |
- General Product Group
- Exhaust Systems & Parts
- General Product Type
- Silencer
- Variant Id
- 209176
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
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.