The secondary LSU4.9 wideband oxygen sensor upgrade is recommended to improve the additional AFR data collection and run the ECU in bank-to-bank closed loop AFR control.
This kit is for a true WiFi connection to you ECU. It includes one mini wireless router, 120v power adapter, cigarette lighter adapter and a battery power supply. On a full charge the battery can last over 8 hours and will let you connect to your ECU without the need for cables anymore!