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Old 01-27-2013, 01:40 AM   #12
m1r4g3
Scooby Specialist
 
Member#: 220476
Join Date: Aug 2009
Chapter/Region: MWSOC
Location: Racine
Vehicle:
2--> 06 STI & 12 Leg
WRB & SWP

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Blanket if just one, and to correct a couple of post above, "trapping" heat in the exhaust aside of the turbo isn't bad. Hotter air flows faster. That's why you wrap headers and up pipes to get the air to spin the turbine as fast as possible.
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