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I have an 87 myself and was recently looking for it (I run a single exhaust after the manifolds) and I believe that they are pre-cat censors, so they should be about halfway between the manifolds and cats. not sure if it's the same for yours though.

this helps if you have catalytic converter trouble because it can be damaged or even removed without effecting the EFI system or your gas milage

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13y ago

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