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i have a 1998 outback today i changed the exhaust. i saved the cats from my 1995 legacy because the ones on the 1998 outback i had a feeling were failing. when i put them on today i realized they were actually different the 1995 cats were a single part from the header to the cat back section where as the 1998 outbacks were 2 pieces. the o2 sensors were also in different locations. will the older 1995 cats work in my situation? its all bolted in now the only thing left is to make a extension cable to plug in the rear o2 sensor due to it being farther back and it does not reach the plug. my plan is to make a male to female extension plug to plug in the rear o2 sensor. i changed them due to the p0420 code and the catylist system never readying and i know for sure the 95 cats worked.

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i think i might have answered this myself by just doing it. once i put the extension on and hooked up the rear o2 / cleared the code the catalyst system readied up within 10 miles. currently im down to only the ev system flashing now witch was ready the other day so its just a matter of time before it should all be ready and i can get it into emissions.

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