FMF Factory 4.1 RCT Aluminum Slip on exhaust muffler Kawasaki KX450F 2009 - 2010
FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE.
The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. It starts at the center with a new core - a patent pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. 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. Visible changes to the exterior include a redesigned canister to increase internal capacity for the maximum volume of packing material. The packing itself was not overlooked – a proprietary blend formulated for superior durability and sound attenuation. The final component is a new rear endcap engineered for simple tuning adjustments incorporating a snap ring feature to secure the standard and optional inserts.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.
- Massive Power gains throughout the RPM range.
- Quieter than stock
- Huge weight savings
- New RTS (Rapid Tuning System) makes for easy sound insert changes as well as adding US Forestry Approved Spark Arrestor.
- Can be used with FMF header or stock.
- #1 Exhaust in 2011 Supercross Series, 2011 Motocross Series, 2011 Motocross of Nations and 2011 Monster Energy Cup!
FMF product details
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- Item ID: 042300
- Type: Slip-On
- Configuration: Single
- Const: Aluminum
- Finish: Natural
- Midpipe: Stainless Steel
- Endcap: Stainless Steel
- Spark Arrestor: Screen Insert (included)
- Quiet Insert: 94dB Insert (included)
- Weight: 5.1 lbs.
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PLEASE NOTE: Handling time is subject to change, if handling time changes you will be notified within 24 hours
When stated in the listing, items will ship FREE to the Continental United States - additional charges may apply to any order shipping to Hawaii, Alaska, Puerto Rico or any other U.S. territories
If EXPRESS shipping is desired please contact us before purchasing to insure we can accommodate shipping deadlines
INTERNATIONAL BUYERS PLEASE READ BEFORE PURCHASE
Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility.
Please check with your country’s customs office to determine what these additional costs will be prior to purchasing. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up – do not confuse them for additional shipping charges.
WE WILL NOT CHANGE ANY INFORMATION ON CUSTOMS FORMS
