04-19-2004, 01:45 PM
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Senior User
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Join Date: Feb 2004
Location: St. Louis region
Posts: 412
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The spiraling action does nothing because by the time the air gets into the actual combustion chamber it's back to the way it was...if you had a head with spirals cut into the intake ports then you might notice something...TBS are the same concept as the "Space age tornado" which we all know is a piece of junk.
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2001 2.3 I4 Ranger,5-spd, XLT Stepside, Reg Cab
Loud pipes save lives!
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