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Reply to "Heat Registers"

CMC uses the heavy steel sub-frame to get "hot" air to the front of the car to include a pipe for defrosters.  If the sub-frame were cut in  the center it would be weakened. The 356 uses a unibody welded construction.

To be honest, not that much heat makes it forward - the steel pipe is not insulated plus airflow is not boosted with an added air blowers (which would help).  Some have re-piped air into the center tunnel with positive results.

bare frame356B_body_panels2_big

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