Name: FMF Factory 4.1 RCT Muffler - Aluminum 045558 1821-1633
Brand: FMF
SKU: 045558
Price: 494.99 USD
Availability: InStock

United States (USD$)

FMF Factory 4.1 RCT Muffler - Aluminum 045558 1821-1633

Availability:

6 in stock, ready to be shipped

SKU 045558

by FMF

Save 10%

$549.99

$549.99 - $549.99

$549.99

$494.99

$494.99 - $494.99

$494.99

The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally
In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering - moving the muffler closer to the motor to centralize mass
The Factory 4.1 RCT is constructed from only aerospace grade materials that meet their exacting specifications and is manufactured 100% at their Southern California factory
Massive Power gains throughout the RPM range.
Huge weight savings
RTS (Rapid Tuning System)

Let customers speak for us

from 5578 reviews

Quality service, prompt shipping; product as advertised

Really a no-frills transaction as they as they all should be: product as advertised, at a good price, delivered promptly. Service on the phone was also very to-the-point and courteous. Will consider buying from Magma again.

08/21/2025