Ngk 24779 NGK Direct Fit Oxygen Sensors tires-wheels-tubes-valve-stems-inner-tubes The ECU needs to be

The ECU needs to be remapped and the system  is intended for use on racetracks and closed courses only

1997-2002 Polaris Scrambler 500 4x4

2009-2010 Harley Davidson FLHX Street Glide

Oxidative stability at all temperature

2006-2007 Yamaha XV1900CTS Stratoliner S

Ngk 24779 NGK Direct Fit Oxygen Sensors tires-wheels-tubes-valve-stems-inner-tubes The ECU needs to beNTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic