US$ 49.95
690 Duke / R > 2008 - 2015
Click here to see our installation guides
allow correct oil flow)
CBR 500 > 2013 - 2018
YZF R25 > 2014 - 2020
Fuel Dongle PP-25 PP39 690 Duke / R >Description Description: This kit is used to eliminate and emulate the O2 sensor located in the exhaust manifold and correct the air fuel mixture. Today's engines are designed to meet very strict emission regulations. To do this, they reduce the stoichiometric mixture (AFR) in a certain RPM range, making the engine run lean on gasoline. A lean burn engine will be unstable, jerk, overheat, and have a noticeable loss in performance. Advantages