I'm looking to convert my 91 Grand Prix to dual exhaust. Emission control not a problem where I live. Can this be done and, if so, what is procedure for doing so? I ask because it appears one exhaust manifold feeds into another then into exhaust pipe.
Thanks,
Kamevil
I'd like to get headers and do a true dual system but am unsure if this is possible with this exhaust setup.
Kamevil.
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