Skip to product information
1 of 2

FMF

FMF Factory 4.1 RCT Slip-On Muffler with Carbon Cap - Aluminum - KX 250 F 042411

FMF Factory 4.1 RCT Slip-On Muffler with Carbon Cap - Aluminum - KX 250 F 042411

Regular price £806.89 GBP
Regular price Sale price £806.89 GBP
Sale Sold out
Taxes included.

In stock, ready to ship

In stock at our shop in west Wales

9 on the shelf, packed and sent from Tal-sarn near Lampeter.

  • Free click and collect from the shop at SA48 8QB, usually ready within 24 hours
  • 30 days to change your mind, and we pay the postage if it is our mistake
Free UK delivery once your order passes £99. Standard £4.50, express £9.99. In stock and ordered before 2.30pm? It goes out the same working day. Not sure it is the right part? Call the parts counter on 01570 470 022.
Brand
FMF
Part number
18212163
Category
MUFFLERS FOR OFFROAD

FMF Factory 4.1 RCT Slip-On Muffler

Factory 4.1 RCT Slip-On Muffler - Stainless Steel/Aluminum with Carbon Fiber End Cap - KX250F

  • RCT (Resonance Chamber Technology) features 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
  • Meets AMA and FIM sound requirements
  • QuietCore 94 dB insert included
  • Spark arrestor included in muffler
  • Made in the USA

Specifications

Brand FMF
Manufacturer part number 042411
Manufacturer description MUFFLER FACT 4.1 RCT ALUM W/ C
Full description Factory 4.1 RCT Slip-On Muffler with Carbon Cap - Aluminum - KX 250 F
Colour Carbon
End Cap Material Carbon Fiber
Riding Style Off-Road
Model Factory 4.1 RCT
Muffler Material Aluminum, Stainless Steel
Units Each
End Cap Color/Finish Black
Muffler Color/Finish Natural
Product Name Muffler
Type Slip-On
Country of origin USA

In the box

  • 1 x FMF Factory 4.1 RCT Slip-On Muffler (part number 042411)

Sold individually unless the title or specification states otherwise.

Fits 2 models

  • KAWASAKI KX 250 (2025-2026)
  • KAWASAKI KX 250 X (2025-2026)

Years shown are per model. If your bike is not listed, contact us with the year, make and model and we'll confirm before you buy.

View full details

Does it fit your bike?

2 models across 1 make. Not sure? Call the parts counter on 01570 470 022.

KAWASAKI
  • KX 2502025-2026
  • KX 250 X2025-2026