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      09-01-2012, 05:37 PM   #27
Drives: 335d
Join Date: Oct 2011
Location: Toronto

Posts: 78
iTrader: (1)

It's a dual stage intake by design. Tuned for lowend torque and high end power. Once again the IS-F uses a similar design. The only reason I can see why a hose is attached is to prevent water from entering the box. Without the hose it is exposed.
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