As much as I hate to say it that near 90 degree bend out of the head is a hard flow for the exhaust. In this case I believe that Pontiac could of stolen some of Chevrolet's ideas.
Title: As much as I hate to say it that near 90 degree bend out of the head is a hard flow for the exhaust. In this case I believe that Pontiac could of stolen some of Chevrolet's ideas.