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Old 05-02-2003, 03:05 PM   #20
QAboy
Scooby Newbie
 
Member#: 21711
Join Date: Jul 2002
Chapter/Region: NWIC
Location: Bellingham
Vehicle:
2012 2.0i Premium
Ice Silver Metallic

Default

Impreza VA

If you look inside of a glasspack, there are little cup shaped fins. When mounted forward, these catch the air and will slightly reduce flow velocity. when mounted backwards they just disturb the airfolw enough to take out the crakles and pops.

eric
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