Not like any other self-tuning controller, Revolution Performances Precision EMS is a true self-optimizing system; adjusts almost instantly with little additional adjustment Simply set it up and ride; no laptop, no dyno and no downloads Delivers instant results instead a little better with each ride; while most systems require the system to learn more than two thousand fuel cells over a tremendous number of rides, the Precision EMS factors in air/fuel ratio, timing parameters, load and temperature ranges then adjusts to them instantly Will benefit everyone; from the owner of a stock bike to a full-blown 135in Takes full advantage of, and retains, the stock Delphi ECU Maintains OEM safeguards and features, like ion-sensing knock protection Only system with engine-load-based timing control Utilizes wide band O2 sensors to constantly monitor and adjust Includes Precision EMS controller, two wide-band O2 sensors, ECU shipment box and customer information sheet Made in the USA ECU will be calibrated by Revolution Performance. Pre-paid, next-day-air package included. Not legal for operation on public highways in the state of California This Item Fits the Following Applications: 2006 Harley Davidson FLSTI Heritage Softail 2006 Harley Davidson FLST Heritage Softail 2005-2006 Harley Davidson FLSTSCI Softail Springer Classic 2005-2006 Harley Davidson FLSTSC Softail Springer Classic 2005-2006 Harley Davidson FLSTNI Softail Deluxe 2005-2006 Harley Davidson FLSTN Softail Deluxe 2001-2006 Harley Davidson FXSTSI Springer Softail 2001-2006 Harley Davidson FXSTS Springer Softail 2001-2006 Harley Davidson FXSTI Softail Standard 2001-2006 Harley Davidson FXSTDI Softail Deuce 2001-2006 Harley Davidson FXSTD Softail Deuce 2001-2006 Harley Davidson FXSTBI Night Train 2001-2006 Harley Davidson FXSTB Night Train 2001-2006 Harley Davidson FXST Softail Standard 2001-2006 Harley Da
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