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95 Impreza L
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Discussion Starter #1
So, I was wondering if there is any difference between california sti's cats, o2 sensors, and ecu compared to the other 49 states' sti's emissions equipment? (Like are they exactly the same) Also are there any years that are different(04-07)?

Thanks for the help, I have been searching all day and could not find anything.
 
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