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Hi guys! i have a 1994 m3 e36 3.0, and my cats are broken, o have find a cat from a 3.2 m3 e36 evo..but we know the oxygen sensor are in differents points..
in the 3.0 they're in the cat, but in the 3.2 they're in the manifold..
i dont have any problem with the weld..but i think it's very difficult to weld those oxygen sensor in the same point..because in the 3.0 they are close to inside of the catalytic converter..

you can see pictures here

i can put the lambdas closest to the cat..but i dont know if that is going to give me problems..what do you think?
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