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FMF Q4 — S/A Slip-On (045667)

Part # 045667
Item #357881
Fits 4 motorcycles
  • Beta
    • 350 RR · 2020-2026
    • 390 RR · 2020-2026
    • 430 RR · 2020-2026
    • 480 RR · 2020-2026
$449.99
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  • Backordered, shipping soon
  • Flat $10 U.S. shipping, free over $100
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WARNING: Cancer and Reproductive Harm, www.P65Warnings.ca.gov
FMF Q4 HEX S/A Slip-On — Beta 350RR (2020-2026), Beta 390RR (2020-2026) + 2 more, 4-Stroke
Product Details

The Q4 HEX is FMF's quietest 4-stroke slip-on — a hexagonal canister with sound-attenuating internal architecture and integrated spark arrestor. Built for noise-restricted tracks and U.S. Forest Service trails where you need quiet, low-decibel operation without losing performance feel.

  • Quietest FMF 4-stroke slip-on
  • U.S. Forest Service approved spark arrestor
  • Hexagonal aluminum canister
  • Stainless steel endcaps
  • Ideal for noise-restricted tracks and off-road

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.

Fitment

  • Beta 350RR 2020–2026
  • Beta 390RR 2020–2026
  • Beta 430RR 2020–2026
  • Beta 480RR 2020–2026

Specifications

System TypeSilencer
Sound ComplianceMeets USFS and FIM World Enduro sound regulations
Spark ArrestorIncluded
Made InUSA
Street LegalityClosed-course / competition use only (CARB-restricted)
Best ForRace-only / Closed-course, Off-road / Trail, Enduro

Verified from Garamoto’s catalog & fitment data.

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