yea reason for it is that a wideband will show you your air fuel ratios in real time. So if the tune on the power fc is really off for you set up you may lean out or run extremely rich and a widband would allow you to monitor this to make sure you dont cause perminant harm to your motor.
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power-FC Djetro rb26dett
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innovative for sure. I have used both and the aem **** out on me twice the sensor fried itself and read lean all the time. The aem also only reads from 10.0 -17.9 if i remember correctly. overall the innovative i think is like 30 more bucks but worth it especially since it has datalogit capabilities
1991 Nissan Skyline R32 GT-R: 710whp 521 ft/lbs 27.5psi 11.8 @126mph low boost
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