FMF Stainless Steel Factory 4.1 RCT Full Line System FE 450 20-21

Compatible models:

HUSQVARNA FE 450 2020-2021.

Factory 4.1 RCT Exhaust System.

RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output.

Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power.

FMF´s Factory Forward Engineering centralizes mass and is less prone to crash damage.

Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws.

Features FMF PowerBomb header.

Meet AMA and FIM sound requirements.

QuietCore 94db insert included.

Spark arrestor included in muffler.

Made in the U.S.A.


Many bikes are equipped with an exhaust valve controlled by a servo motor. When making performance changes involving the replacement of the exhaust or the installation of an additional control unit, it is necessary the elimination of the exhaust valve.

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