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O2 Sensors/Kooks Headers
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05-02-2010, 12:22 AM
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gtrpryde
Drives: 03 Evo 8, 93 KAT S13
Join Date: Jun 2009
Location: Houston
Posts: 50
Most likely yes, regardless of cats. My dad's threw a cel after 60 miles, no biggie though, does not affect performance at all, and they'll get tuned out when the car gets tuned.
gtrpryde
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