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FMF Factory 4.1 — RCT Stainless Full System — Husqvarna FE 450 (2020-2023), KTM 450 XCF — W

Part # 045651
Item #357870
Fits 3 motorcycles
  • Husqvarna
    • FE 450 · 2020–2021
    • FE 450 · 2023
  • KTM
    • 450 XCF-W · 2023
$1,074.99 $967.49 Save $107.50
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FMF Factory 4.1 RCT Stainless Full System — Husqvarna FE 450 (2020-2023), KTM 450 XCF-W (2023), 4-Stroke
Product Details

The Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.

  • FMF Resonance Chamber Technology (RCT)
  • 304 stainless steel construction — rugged and corrosion-resistant
  • Shorter overall length for mass centralization
  • Rapid Tuning System (RTS) — sound insert and spark arrestor swaps
  • Quieter than stock with weight savings

Fitment: 4-stroke bike specific — fits the following models:

  • Husqvarna FE 450 (2020-2023)
  • KTM 450 XCF-W (2023)

This is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.

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