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Old 10-19-2009, 06:32 PM   #24
1-ST
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Join Date: Jan 2008
Fan#: 53127
Location: Birmingham-ish, AL
What I Drive: 2005 Liquid Grey ZX4 ST

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Yes, because it deletes the catalytic converter. You can run STX with a header and high flow cat, though. 14.10(E) if you want to look it up.
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Sedan Revolution #103
focus in storage. hit a rock with the oil filter and locked it up.
gotta sort out a 351w 4 door fox first, then the focus gets a 2.5
commuting with a v6 5 speed mazda 6 wagon.
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