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Old 12-17-2015, 09:58 PM   #42 (permalink)
EcoModding Lurker
Join Date: Dec 2015
Location: Cornwall, Ontario
Posts: 3

Focus - '09 Ford Focus SES
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Is this a serious question? A *warm* air intake? You'll be dumping in unnecessary fuel, and burning too rich. That'll lower your fuel economy, not raise it. Hot air is easier for your while to drive through due to the thinner air, but cold air gives denser, more oxygen rich air to your engine.
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