Cuts Through the Worst Mud, Fast
Mud Melter's formula breaks down caked-on dirt, clay, and trail grime without scrubbing. Spray it on, let it work, rinse it off — your bike is clean before the next moto.
FMF Racing KTM 250-450SXF 15-18 FE/XCF 16-18/ HQV FX250-450-501 16-18 SS 4.1 RCT SO w/CRBNCAP
$549.99
Regular price
$549.99
Sale price
$549.99
Regular price
$549.99
Unit price
per
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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.
- Highest-quality proprietary blend of alloy grade titanium
- Blue anodized titanium muffler with carbon end cap
- Massive power gains throughout the RPM range
- Rapid Tuning System (RTS)
FMF Racing KTM 250-450SXF 15-18 FE/XCF 16-18/ HQV FX250-450-501 16-18 SS 4.1 RCT SO w/CRBNCAP
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.
- Highest-quality proprietary blend of alloy grade titanium
- Blue anodized titanium muffler with carbon end cap
- Massive power gains throughout the RPM range
- Rapid Tuning System (RTS)
ATTRIBUTES: false, false, false, Unknown, powersports, Compliant, false, t, 1
BRAND: FMF Racing
MPN: 045594
SKU: 686760
Fitment:
KTM 250 EXC-F Base 2017 to 2019
KTM 250 SX-F Base 2016 to 2018
KTM 250 SX-F Factory Edition Base 2015 to 2016
KTM 250 XC-F Base 2016 to 2018
KTM 350 EXC-F Base 2017 to 2019
KTM 350 SX-F Base 2016 to 2018
KTM 350 XC-F Base 2016 to 2018
KTM 450 EXC-F Base 2018 to 2019
KTM 450 SX-F Base 2016 to 2018
KTM 450 SX-F Factory Edition Base 2015 to 2017
KTM 450 XC-F Base 2016 to 2018
KTM 500 EXC-F Base 2017 to 2019
| Air Freight Prohibited: false |
| Not Carb Approved: false |
| Ltl Freight Required: false |
| Prop 65: Unknown |
| Part Type: powersports |
| Epa: Compliant |
| Carb Acknowledgement Required: false |
| Regular Stock: t |
| Units Per Sku: 1 |
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Bikes
500+ cleaned
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Race seasons
10+ tested
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Satisfaction
100%
Safe on Every Surface
Formulated to be tough on mud but gentle on plastics, rubber, bearings, and graphics. No harsh solvents, no damage — just a clean bike ready for the next ride.
Made in a Real Race Shop
We didn't hire a marketing team to invent a product. We built Mud Melter because nothing else worked well enough on the bikes we were actually racing and rebuilding.
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