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Thread: Exhaust
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Old 02-13-2013, 03:05 PM   #7
StingRay
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Eh, I haven't seen any long term reviews to have much of an opinion on it for the focus specifically. But it will probably be one of the first mods on mine when I get it. Even on the NA focus there was a good bit of oil residue in my intake, the increased crankcase pressure on the ST can only make that worse. Plus direct injection engines have enough of an issue with buildup on the valves, might as well install something that can help reduce that even a little bit! Just my opinion though.
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