The NTK UEGO Sensor is a high quality replacement sensor for the NGK Powerdex AFX & Ballenger Motorsports AFR500. Some tuners swear by this sensor and will attest that it lasts longer and maintains greater accuracy over its lifespan. The NTK is more tolerant of leaded & exotic fuels than Bosch alternatives. Make sure you use the right sensor in the right situation!
Thru 4/19/19, take 10% off these sensors using the coupon code MARNTK