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Old 11-23-2009, 02:02 AM   #2
chappy48

 
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Drives: 2010 Camaro Auto 2SS/RS
Join Date: Oct 2008
Location: Wauconda, IL
Posts: 878
What I've been trying to tell people, but they don't seem to understand. Hope this helps. Back pressure is bad! You want an exhaust that creates the lowest back pressure, while keeping the exhaust gas velocity up.
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