I have a 95 Lsi BD and the stealership by me has 2 outback that they are parting out for the cost of pulling the part. My check engine light keeps coming on and saying my cat is bad. I want to replace both at once and if I can pick a set up cheap i'd like to do the swap. Anyone know if they are interchangable? the outbacks are a 97 and 98. THanks, TIm