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Discussion Starter #1
How many and where is the catalytic converter is it right off the monifold or is it in the middle of the vehicle or does a 2008 pontiac g6 carry 2 cats
 

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3.5 it's the v6 I'm almost positive there is 2 so here's my question if I change my whole system out but only install 1 cat what would happen
 
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