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Old 05-31-2016, 06:28 PM
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Hank70SS Hank70SS is offline
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Location: Brighton, MI
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Headers definitely reduce back pressure on the engine. The headers cool the exhaust gases faster than stock manifolds so they condense quicker and create less back pressure. If you think back pressure is a good thing then stuff some raw potatoes up your tail pipes and go for it.
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70 Chevelle SS396(454), M20, 3.73
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