The original Nightrider O2 sensor Inline Enrichment design providing a modest .4 AFR improvement in the closed loop fuel mixture. Richer is not always better, it is only richer. The HD TC engines react favorably to the most modest improvements in fuel mixture. This design works as well now as when it was initially introduced.
Our simple plug-n-play fuel management upgrade that fits most 2007 and later Harley-Davidson motorcycles. Except for the 2009>later HD Touring Bikes, the O2 IED is still a good choice for rider wanting a slightly richer fuel mixture. Nightrider's unique patented design works inline with your existing H-D Bosch narrow band O2 sensor and Delphi ECM to richen the fuel mixtures. Riders can quickly and simply richen the closed loop fuel mixture on your TC96/103/110 engine from the stock 14.6:1 to 14.2:1 AFR. The O2 IED's will add approximately 4% more fuel to the engine in closed loop operating mode than a similar unequipped vehicle. There is an indirect richening of open loop fuel mixture's through the learning mode or adaptive fuel value action, ensuring these richer 13.8-12.5:1 AFR's are also adjusted in heavy/full throttle situations.
This richer fuel mixture results in benefits that can include:
- Cooler exhaust temperatures
- Reduced engine temperatures
- Improved throttle response
- Less engine ping
Recommended for HD bikes with OEM emissions downloads. These include:
- TC96, TC96 Stage 1
- TC103, TC103 Stage 1, TC103 Stage 2
- TC110, SE CVO 110
- XL 883, XL 1200, XR1200, all XL Stage 1
- Upgraded exhaust systems including slip-on mufflers and full exhaust changes, and air cleaner upgrades are compatible with the O2 IED upgrade
All XiED(tm) products are Protected by U.S. Patent 7,805,236
For Off Road Use Only