Optimal design for AF2:
Volume reduce 38%
Weight lower 53% 
Performance up!!!
Simple wire connection
Status is clearner​
Bosch LSU 4.9 wideband oxygen sensor include
Response  +37.5%
Minimum operating voltage lower to  8.5 V
Measurement accuracy up 80%
Heating power consumption reduce 25%
Maximum operation voltage increase 5%
Lifecycle increase 56%
Ｗarm up time faster 50%