A simple, adjustable AFR device specifically designed for Buell requiring nothing more than a small screwdriver. This is based on our simple plug-n-play fuel management upgrade specifically designed for most Harley-Davidson/Buell bikes. Nightrider's unique patented design works with your existing OEM O2 sensor and ECM allowing richer fuel mixtures. Riders can quickly and simply richen the closed loop fuel mixture on your Buell DDFI3 ECM equipped engine from the stock 14.6:1 to a 14.3-13.7:1 AFR range. The mixture adjustment is available under the Rider seat.
The richer fuel mixture results in benefits that can include: cooler exhaust temperatures, reduced engine temperatures, improved throttle response, less low RPM engne surge and less engine ping.
Recommended for stock bikes and those with upgraded exhaust or intake changes.
Limited use on 2007<earlier Buell's with the DDFI2 ECM. These bikes can only use the 14.3-14.0 settings.
Not recommended for bikes with the Buell Race ECM.
Buell VIED's are sold each.
*US Patent 7805236
For Off Road Use Only
For use on DDFI3 equipped Buell bikes. Sold each. 