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Old 07-17-2012, 12:01 PM   #10
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Join Date: May 2012
Fan#: 99616
Location: Bowling Green, KY
What I Drive: 2012 silver focus S

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Tb = throttle body. It's just a spacer between the throttle body and intake, I honestly don't see it being too beneficial. Shorty header is an exhaust mod, it goes before your catback and bolts to the head. I haven't seen any testing done on these with our cars though. It's all speculation at this point, none of us really have a clue what these things are capable of, especially with stock internals. We'll see more go fast goodies when the warranties start expiring.
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