Complete wideband air/fuel ratio tuning assistant system.

• Essential tuning assistant designed to be used with data logging systems such as a dyno or the Mobile Dyno feature found in TechnoResearch's Direct Link software
• Includes two Bosch LSU 4.2 oxygen sensors with 7-foot long cables for easy and versatile usage
• Interfaces directly with any TechnoResearch VCM-TR3 or VCM-TR4 communication module included in Centurion Pro or Centurion Pro Plus packages
• No calibration required with digital precision
• Made in the USA