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      06-30-2014, 03:14 PM   #9
TheSt|G
Resident Tamed Racing Driver
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Drives: 911, 130is, E39 M5, E36 M3
Join Date: Mar 2008
Location: Outside Philly

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Quote:
Originally Posted by tuphdc View Post
what does "disable rear o2 sensor monitoring" actually mean? I take it this is not the same thing that the Evolve tune does....
Disable means they turn off the sensor. No annoying dash light, but it will fail plug in OBD2 emissions. If you live in a state that does not perform inspections, you are fine.
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