FMF 4.1 Full Exhaust Blue Carbon Vortex ECU X10 Yamaha YFZ450R 2009-2020

100% of 100
Part Number
044401 + VTU-374R
Images are for representation purposes only. Actual Product may differ

This Special Chad Wienen Power Kit includes:

The FMF 4.1 Chad Wienen Full Exhaust for the Yamaha YFZ450R incorporates Resonance Chamber Technology, with patented core shape lowers sound level while maintaining maximum power output and canister shape increases internal volume for more sound absorbing material. The chamber is designed to enhance and refine exhaust pressure. The exhaust is tuned with optimized core specifications and comes with the quality, craftsmanship and performance expected from FMF. Meets AMA and FIM sound requirements.

The Vortex ECU for the YAMAHA YFZ450R is like our CDI and EFI Interceptor rolled into one module. The ECU controls not only Spark timing and Voltage output but also Fuel Metering and other engine management functions. The result is more power, better power, easier starting and ultimately faster lap times. This unit comes pre-programmed with 10 Performance Fuel & Spark timing maps as well as having 3 additional switches for user trimming (adjusting) of Fuel in Lo, Mid and Hi throttle openings. The ECU plugs directly into the bikes standard wiring harness and interfaces with all the standard engine sensors such as ECT (Engine Coolant Temperature), IAT (Intake Air Temperature), MAP (Manifold Absolute Pressure), TPS (Throttle Position Sensor), CPS (Crank Position Sensor) to adjust fuel and spark timing for optimum power delivery in all weather, altitude and load conditions. Performance gains vary depending on throttle and RPM points however typically gains are in Top End power and Bottom End throttle response is expected from the Power settings and a smoother more tractable or rideable power from the Traction settings. We have done extensive work to include tune parameters which improve starting and almost eliminate the flameouts experienced with EFI mx bikes. All of the development work is done for you! All that is left is for you to do is chose a setting that best suits your riding style or track conditions and ride!

Exhaust Specs:
Type: Full System
Configuration: Single
Construction: Titanium
Finish: Blue Anodized
Midpipe: Stainless Steel
Endcap: Carbon Fiber
Spark Arrestor: Screen Insert (included)
Quiet Insert: 94dB Insert (included)
Header Construction: Stainless Steel
Header Type: PowerBomb

Vortex Specs:
More & Smoother Power
Pre Programmed with 10 Performance Fuel & Ignition maps (changed by adjustable dial) developed on the Dyno & Track, all the work is done for you!
Instant Plug in Performance (replaces standard ECU with no mods to wiring required)
3 fuel trim switches to adjust fuel mapping by +12.5% to minus 10% in Lo, Mid and Hi throttle opening
Adjustments made using a screwdriver and switches provide visual feedback as to changes made
V-Boost - Programmable Voltage Boost Circuit for maximizing Spark Energy across the entire rev range
Higher Rev Limit (where required)
Robust design, fully waterproof with o-ring sealed switches
Diagnostic Flash codes, tests for sensor faults and flashes codes to FI light
Rubber Mounting Boot + Brackets supplied (where required)
Race Proven reliability
Handlebar switch (Optional upgrade at additional cost)
Dynamic Map Selection, easy installation with original plugs
Fully Programmable (PC Software - not included, available at additional cost)
Interface to Vortex Data Acquisition System and Wideband A/F Sensor

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