If you get the Osiris package they will also send you the stock flash, so you can go completely back to stock when needed. Only takes like 10-20 seconds to do. Only requirement with UpRev is that you need a Laptop, since all they provide is the cable, license, and software.
Not sure what you mean by needing to install a wideband to get A/F measurements, as we already have sensors to read this, and its part of the data you need to collect for the E-Tune.
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Current Ride: 2012 Chevrolet Corvette Grand Sport Centennial Edition Carbon Flash 6M
Previous Ride: 2009 Nissan 370Z Sport Platinum Graphite 7AT
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