We are offering a calibration test service for any Holley NTK sensor. We will inspect and test your sensor and give a report on how accurate it is at your specified Lambda.
You are purchasing only the test, report, and return shipping.
Mark your order number on the package and ship to:
MAD Racing Parts
8490 Turnbull Road
Warrenton VA 20186
Part #: MADO2Test-.6