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Old 07-21-2010, 10:57 AM   #3
WinterSubie
Scooby Specialist
 
Member#: 243234
Join Date: Apr 2010
Chapter/Region: NESIC
Location: Charlestown RI/Storrs Ct
Vehicle:
2009 Hatch
OBP

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For a lot of people it's only because they new UEL headers they bought have thinner walls so they let more heat escape and the CEL the car is throwing is because temp. at the catalytic converter are too low and not high enough for maximum efficiency. If that's the CEL that's being thrown either powder coating or wrapping the headers will prevent this.
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