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Old 01-09-2013, 01:19 PM   #2
Scooby Specialist
Member#: 131280
Join Date: Nov 2006
Chapter/Region: BAIC
Location: Northern California Hayward
2004 Impreza WRX


Bottom: No matter what mods you have (unless you have cams) if you put your stock downpipe on, you will pass smog. Visually depends on how strict the smog place is. You do not have to flash back the ecu to stock for smog unless you have a crazy setup.
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