Beta 350/390/430/480RR 20-25 Hex Q4 S/A Muffler

Description

A 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the "Bomb" at this key point, the expansion and contraction of exhaust sonics through the system resulting in a flow increase of nearly 10%. The surface of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up at higher air pressures (RPMs). The Power Bomb is a "pre-muffler" of sorts, which helps to lower the bike's sound output because it provides more sound-absorbing surface area to allow the exhaust gases to become absorbed.

Fitment

This part fits the following vehicles.

• 2020, 2023-2024 350 Beta RR
• 2020-2025 350 Beta RR-Race Edition
• 2020-2023 350 Beta RR-S
• 2025-2026 350 Beta RR X-Pro
• 2020, 2023-2024 390 Beta RR
• 2020-2025 390 Beta RR-Race Edition
• 2020-2023 390 Beta RR-S
• 2025-2026 390 Beta RR X-Pro
• 2020, 2023-2024 430 Beta RR
• 2020-2025 430 Beta RR-Race Edition
• 2020-2023 430 Beta RR-S
• 2025-2026 430 Beta RR X-Pro
• 2020, 2023-2024 480 Beta RR
• 2020-2025 480 Beta RR-Race Edition
• 2025-2026 480 Beta RR X-Pro

Specifications

California residents

WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.