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Old 09-07-2010, 04:33 PM   #4
Scooby Specialist
Member#: 59703
Join Date: Apr 2004
Chapter/Region: VIC
Location: Vancouver
2004 STi
always wrb


They run your car on the rollers if you fail the monitor reading test. From my experience, replacing your OEM up and down pipe and having proper working O2 sensors should get you a pass. Remember next time they will put your car on the rollers even if you pass the monitor readings.
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