Factory 4.1 RCT Titanium Anodized Exhaust Silencer 24-25 Beta 450 RC RX - FMF 045690 1
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
Designed for closed course competition, the FMF Racing Factory 4.1 RCT Titanium Anodized Slip-On exhaust with Carbon Cap offers significant power gains and weight savings. It utilizes advanced FMF Resonance Chamber Technology and aerospace grade titanium. Its shorter, forward-positioned design improves centralization of mass and reduces potential crash damage. Manufactured entirely in Southern California, this system is finished in striking blue anodized titanium with a carbon end cap, and it includes both spark arrestor and quiet inserts. Features include latest FMF Resonance Chamber Technology (internal and external), short crash-resistant design, proprietary blend of alloy grade titanium construction, blue anodised titanium muffler with carbon fibre end cap, massive power gains, significant weight savings, new RTS (Rapid Tuning System), screen spark arrestor insert, and 94 dB quiet insert. Specifications include item ID 045690, slip-on type, single configuration, titanium construction, blue anodised finish, titanium mid-pipe, carbon end cap, and included spark arrestor and quiet inserts. This product is for closed course use only.
- SKU
- 07-4002.T41
- Brand
- FMF Exhausts
- Availability
- In Stock (2)
Fitments (3)
| Make | Model | Year |
|---|---|---|
| BETA | 450 RC | 2025 |
| BETA | 450 RX | 2024 |
| BETA | 450 RX | 2025 |
- SKU
- 07-4002.T41
- Brand
- FMF Exhausts
- Availability
- In Stock (2)
FULL DESCRIPTION
FMF Racing Factory 4.1 RCT Titanium Anodized Exhaust Silencer
Engineered for the demands of closed-course competition, the FMF Racing Factory 4.1 RCT Titanium Anodized Slip-On exhaust system delivers substantial power enhancements and a notable reduction in weight. This system leverages FMF Resonance Chamber Technology™ and aerospace-grade titanium construction for superior performance.
The silencer's compact, forward-positioned design is crucial for improving the motorcycle's center of mass, thereby enhancing handling and reducing the likelihood of damage in the event of a crash. Manufactured entirely in Southern California, it features a striking blue anodized titanium finish complemented by a carbon fiber end cap. This performance exhaust includes both a spark arrestor and a quiet insert for versatile use on designated competition tracks.
Key Features:
- Incorporates the latest FMF Resonance Chamber Technology™ for optimised sound and performance, both internally and externally.
- Features a short, resilient design that aids in centralising mass for improved handling and crash survivability.
- Constructed from a proprietary alloy grade of titanium for durability and lightweight performance.
- Boasts a vibrant blue anodized titanium muffler matched with a sleek carbon fibre end cap.
- Provides significant power increases across the entire RPM range.
- Offers substantial weight savings compared to stock exhaust systems.
- Includes the new RTS (Rapid Tuning System) for straightforward setup adjustments.
- Comes with a screen spark arrestor insert and a 94 dB quiet insert, offering flexibility for different track requirements.
- Designed exclusively for closed-course competition use.
Specifications:
- Item Type: Slip-On Exhaust Silencer
- Configuration: Single
- Construction Material: Titanium
- Muffler Finish: Blue Anodized Titanium
- Mid-pipe Material: Titanium
- End Cap Material: Carbon Fibre
- Spark Arrestor: Screen insert included
- Quiet Insert: 94 dB insert included
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.