18202168 FACTORY 4.1 RCT MB FULL SYSTEM EXHAUST ALUMINIUM W/CARBON END CAP

Name: FMF FACTORY 4.1 RCT MB FULL SYSTEM EXHAUST ALUMINIUM W/CARBON END CAP
Brand: FMF
SKU: 18202168
Price: 1056.48 GBP
Availability: InStock

Fits Yamaha YZ 450 F

£1242.92 Save 15%

£1056.48

incl. VAT

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Part #: 18202168

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§ 02 / About this part

What it is

The FMF FACTORY 4.1 RCT MB FULL SYSTEM EXHAUST ALUMINIUM W/CARBON END CAP, full systems. Stocked by Iron Offroad, the UK MX hard parts specialist.

This full system uses resonance chamber technology to increase exhaust volume while shortening the overall canister length. This design moves the silencer closer to the bike's centre of mass for better handling. The carbon fibre end cap and aluminium canister offer a significant weight saving over the stock assembly. It provides a massive boost in mid-to-top end power. The header design improves low-end grunt and reduces sound output. Ensure the mid-pipe is correctly aligned before tightening the mounting bolts to avoid stress fractures.

§ 03 / Specs

The numbers

Brand: FMF
Part number: 18202168
Category: Full Systems
Weight: 5.56 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 1 model · 1 year-band

Yamaha YZ 450 F 2026

* 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 — this is a UK shop for motocross, enduro, and trail-bike hard parts. All fitments live on the site, and listed against MX models KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is in the data, fully enriched to assist with accurate fitting and finding the right part for your bike quickly and easily. 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 & e-moto only. We operate from our huge storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. We have a RICH motorcycle history with multiple moto brands the images showing where we came from and our history, the business recently pivoted into hard parts and online retail.