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Old 04-07-2010, 11:35 PM   #4 (permalink)
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Location: Oregon
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Tank - '96 Ford Aspire 4 door
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Don't bother with larger diameter pipes. You'll see a drop in low-end power from the reduced flow velocity. You're better off going with a higher-flowing muffler and catylitic converter and leaving the stock pipes in place. That's the setup I have.

As it's been stated, reducing pumping losses helps both power and economy.
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