The Factory 4.1 RCT complete system is FMF Racing's premier performance exhaust system incorporating the latest in Resonance Chamber Technology. The 4.1 RCT complete system includes the Titanium Megabomb header that gains horsepower throughout the RPM range and is the lightest titanium system available. This system also includes a Spark Arrestor Screen Insert and Quietcore 96db insert.
Used by professional race teams such as Factory KTM, Yamaha of Troy and Star Racing
FMF Model # 042268
Fitment: 2011 Kawasaki KX450F
*Note: Actual product may slightly vary depending on make and model.
Spark Arrestor: Screen Insert (included)
Quiet Insert: 94dB Insert (included)
Header Const: Titanium
Header Type: MegaBomb
All new incorporating the latest in Resonance Chamber Technology
Patented core shape lowers sound level while maintaining maximum power output
Patented canister shape increases internal volume for more sound absorbing material
Patented chamber design to enhance and refine exhaust pressure
Factory Forward Engineering centralizes mass and is less prone to crash damage
Tuned exhaust with optimized core specifications for each application
Innovative rear endcap for simple installation of tuning tip inserts or spark arrestor