FMF KTM FACTORY REPLICA 4.1 TITANIUM SILENCER W CARBON END CAP

PLEASE NOTE:  Some FMF fitments are out of stock because of limited availability from the manufacturer and are PRE-ORDER ONLY.  Lead times range from 4 weeks to 12 weeks

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our 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 our exacting specifications and is manufactured 100% at our Southern California factory.

• Available in Blue Anodized Titanium Muffler with Carbon End Cap 
• Massive Power gains throughout the RPM range.
• Huge weight savings
• New RTS (Rapid Tuning System)
• FMF uses the highest quality proprietary blend of alloy grade titanium made specifically to our standards.

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Sound levels at idle speed tested at 1' above and 1' behind each
muffler on the same 21' 500 EXCF tested back to back.

Stock muffler 82
Stock w Pro Moto end cap / ultra silent insert 85
Stock w Pro Moto end cap / silent insert 86
Stock w Pro Moto end cap 88

Graves Motorsports w db killer 85
Graves Motorsports 89

Fmf q4 84
Fmf 4.1 88
Fmf power core 88

Lexx w db killer 86
Lexx w spark arrestor insert 87
Lexx 89

Akropovic 85

FOR ANY FITMENT QUESTIONS CONTACT US 

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