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Old 01-17-2010, 10:25 PM   #3 (permalink)
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exhaust systems

because pipe flow fluid dynamics are so complex even engineers return to the test bench and find out what really works. I have flow tested the two headers and the thunder street header flows 25% better, weather that turns into redused pumping loses and better fuel economy remains to be seen. I will know in the next month or so.
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