FMF MUFFLER P-CORE 4 HEX MFLR KX450F

§ 01 / Part

18212091 MUFFLER P-CORE 4 HEX MFLR KX450F

Fits 2 bikes
RRP £454.72 Save 15%
£386.51

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 18212091

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FMF

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§ 02 / About this part

What it is

The FMF MUFFLER P-CORE 4 HEX MFLR KX450F, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This muffler is an entry-level performance upgrade for 4-stroke bikes. It features a stainless steel mid-pipe and an aluminium canister for improved durability over stock. The design increases power and torque throughout the RPM range. It bolts directly to the OEM header pipe. The hex-shaped canister provides a modern look and increased internal volume for better sound management. Repack the muffler every 20 hours to ensure the internal core remains effective and to protect the aluminium sleeve from heat fatigue.

§ 03 / Specs

The numbers

Brand
FMF
Part number
18212091
Weight
3.08 kg
VAT
20%

// Fitment

Will it fit your bike?

Fits 2 models · 2 year-bands

* Fitment data is provided as a guide. Verify compatibility against the bike's owner's manual or service handbook before ordering. Iron Offroad accepts no liability for incorrect application. Full terms and conditions apply.

§ 05 / About Iron Offroad

Iron Offroad

Iron Offroad is the off-road sibling of Iron City and Iron Stable — a UK shop for motocross, enduro, and trail-bike hard parts. Every fitment lives on the site, listed against KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is the data: fully enriched fitment so you find the right part for your bike quickly and get it fitted accurately. Brands you'd find on a paddock workbench — pads, sprockets, plastics, fork seals, cables, gaskets, bars, the things that actually wear out. Road-bike kit, scooter parts, and quad gear sit elsewhere; dirt and e-moto only. We operate from our storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. The business has a rich motorcycle history across multiple moto brands — the photos show where we came from — and recently pivoted into hard parts and online retail.
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Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement
Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement