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Old 01-29-2011, 05:03 PM   #4
suby6
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So outside of a few horse power from higher octane and timing. What does the tune do that improves performance.

Mine is a zetec manual tranny with race header, SRI, ported TB, and 2.25 exhaust.

I'm not talking about programmable features like red line adjustment or tire size but things that improve power or driveability.

Thanks,
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