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Old Oct 17, 2014 | 09:06 AM
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XR2
Advanced PassionFord User
20 Year Member
 
Joined: Nov 2005
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From: Bavaria
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Haven't seen a dyno test yet comparing an aftermarket Zetec manifold with the ST170 item. ST170 has too much bends for my taste, I'd go for a "normal type" four branch.
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