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#11: 12-26-2012, 09:56 PM
 
 Tr00b
Title: Contributor
Location: Galena, IL
Car: 1999 Legacy "L" 5MT, 1997 Jeep Wrangler
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This is just for the cat converter O2 which is usually just there to show whether the cat is working or not. You def wouldn't want to do that on your upstream o2.