Items (0)

FMF Factory 4.1 RCT Slip-On Silencer With Carbon End Cap & Side Panel - Honda CRF450R/ CRF450X 2017-18

£518.67 (FREE UK Delivery)
Item in Stock  |  Usually dispatched within 24 hours
Add to Bag
This product has been added to your basket...
  • Continue Shopping
  • Checkout

The Factory 4.1 RCT Slip-On Silencer features Resonance Chamber Technology (RCT), a patented core shape that lowers decibels while maintaining maximum power output.


  • Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power
  • FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage
  • Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
  • Compatible with stock header or FMF header
  • Meet AMA and FIM sound requirements
  • QuietCore 94db insert included
  • Spark arrestor included in silencer 
  • Carbon end cap
  • Made in the U.S.A.
  • Materials: Aluminium/ Stainless steel/ Carbon
  • Side panel specific to bike included.

To fit:

  • HONDA CRF 450 R 2017 ALL
  • HONDA CRF 450 R 2018 AMERICA
  • HONDA CRF 450 R 2018 EUROPE
  • HONDA CRF 450 RX 2017 ALL
  • HONDA CRF 450 RX 2018 ALL
  • HONDA CRF 450 RX Supermoto 2018 ALL
  • HONDA CRF 450 X Enduro 2017 ALL


If you require a refund please return the item(s) to the address below along with a Returns Sheet and we will promptly refund the order in full:

Dennis Winter Ltd
Canalhead Service Station
South Street
HU17 5NY

*If an item is returned the customer is required to cover the cost of return P&P (unless otherwise agreed.)

Shipping rates:

UK mainland (Exc. N. Ireland) = FREE DELIVERY ON ALL ORDERS.

Western Europe Up to 1KG = £7.99
Western Europe 1-2 KG = £9.99
Western Europe 2+ KG = £19.99

No credit or debit card details are held on our system and all payments are made via a sceure network.