An exhaust manifold does more than link the engine exhaust ports to the rest of exhaust system. It reduces combustion noise and transfers heat downstream to promote the continued oxidation of unburned hydrocarbons and carbon monoxide. The manifold therefore supplies some emissions control before the exhaust reaches a catalytic converter that may be fitted farther downstream.
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An exhaust manifold does more than link the engine exhaust ports to the rest of exhaust system. It reduces combustion noise and transfers heat downstream to promote the continued oxidation of unburned hydrocarbons and carbon monoxide. The manifold therefore supplies some emissions control before the exhaust reaches a catalytic converter that may be fitted farther downstream.
Custom Exhausts
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