Name: Factory 4.1 RCT Exhaust Silencer 09-11 Kawasaki KX 450 F - FMF 042291
Brand: FMF Exhausts
SKU: 06-1754.FMF.FAC
Price: 573.25 GBP
Availability: InStock

Factory 4.1 RCT Exhaust Silencer 09-11 Kawasaki KX 450 F - FMF 042291

FMF Exhausts
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Description

The Factory 4.1 RCT Stainless SL Slip-On with Carbon End Cap delivers advanced performance with FMF’s Resonance Chamber Technology™, optimising power output and mass centralisation for professional-level racing. Built from top-tier aerospace grade materials at FMF’s Southern California facility, this slip-on exhaust offers substantial weight savings, improved crash resilience and the latest Rapid Tuning System for seamless adjustments. Its precise engineering ensures reduced overall length and an optimally positioned muffler for enhanced handling and durability.

Features

Incorporates both internal and external FMF Resonance Chamber Technology™
Shorter, forward-positioned muffler design for centralised mass and reduced crash vulnerability
Constructed from aerospace grade aluminium and stainless steel with carbon fibre end cap
Massive power gains across the RPM range
Significant weight reduction over stock systems
Includes Rapid Tuning System (RTS) for quick adjustments
Natural aluminium finish with carbon end cap for strength and style
Screen-type spark arrestor insert and 94dB quiet insert included
Manufactured 100% in FMF’s Southern California factory
For closed course competition use only

Specifications

Item ID: 042291
Type: Slip-On
Configuration: Single
Construction: Aluminium
Finish: Natural
Midpipe: Stainless steel
Endcap: Carbon fibre
Spark Arrestor: Screen insert (included)
Quiet Insert: 94dB insert (included)
Weight: 5 lbs (approximate)
Carb Warning: No

Vehicle Fitment

Kawasaki

KX450F (2009–2011)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
KAWASAKI	KX F 450	2011

Factory 4.1 RCT Exhaust Silencer 09-11 Kawasaki KX 450 F - FMF 042291

FMF Exhausts
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Product form

The Factory 4.1 RCT Stainless SL Slip-On with Carbon End Cap delivers advanced performance with FMF’s Resonance Chamber Technology™, optimising... Read more

1 in stock 1-2 business days

£573.25 Incl. VAT

Guaranteed secure & safe checkout.

SKU: 06-1754.FMF.FAC

Free shipping on all orders above £75

No hassle returns within 30 days

Description

The Factory 4.1 RCT Stainless SL Slip-On with Carbon End Cap delivers advanced performance with FMF’s Resonance Chamber Technology™, optimising power output and mass centralisation for professional-level racing. Built from top-tier aerospace grade materials at FMF’s Southern California facility, this slip-on exhaust offers substantial weight savings, improved crash resilience and the latest Rapid Tuning System for seamless adjustments. Its precise engineering ensures reduced overall length and an optimally positioned muffler for enhanced handling and durability.

Features

Incorporates both internal and external FMF Resonance Chamber Technology™
Shorter, forward-positioned muffler design for centralised mass and reduced crash vulnerability
Constructed from aerospace grade aluminium and stainless steel with carbon fibre end cap
Massive power gains across the RPM range
Significant weight reduction over stock systems
Includes Rapid Tuning System (RTS) for quick adjustments
Natural aluminium finish with carbon end cap for strength and style
Screen-type spark arrestor insert and 94dB quiet insert included
Manufactured 100% in FMF’s Southern California factory
For closed course competition use only

Specifications

Item ID: 042291
Type: Slip-On
Configuration: Single
Construction: Aluminium
Finish: Natural
Midpipe: Stainless steel
Endcap: Carbon fibre
Spark Arrestor: Screen insert (included)
Quiet Insert: 94dB insert (included)
Weight: 5 lbs (approximate)
Carb Warning: No

Vehicle Fitment

Kawasaki

KX450F (2009–2011)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
KAWASAKI	KX F 450	2011

Shipping & Delivery

How long will my item take to arrive?

Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

Where do you ship to?

We currently only ship orders within the UK.

How can I track my order?

Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

Can I collect my order?

Unfortunately we do not offer order collections from our fulfilment centre.