MIL eliminators - cat efficiency, do they really work?
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06-12-2003, 10:17 PM
'02 PSM WRX wagon
NESIC Trackh0z # 456
you don't need to install it at the rear o2 sensor - you can put it next to your ECU.
I don't know about instructions for an RS but I used these for a WRX.
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