What made you choose this particular product?
It's funny, most e36 fanatics might tell you to replace the OBD2 manifold with the OBD1. This is due to airflow restrictions in the OBD2 manifold. I decided to stick with the OBD2 manifold for the 3.0. This is supposed to give me better torque numbers. However since the new head install, I might try the OBD1 manifold out and see if that opens up airflow even more. Probably not necessary though.
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