Thread: I Need Help!!! 06 Grand Prix 3.8 V6 Catalytic Converter

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  1. #1  
    Turbo is the way to go. REDCRAPGP's Avatar
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    Sounds like it could be a clogged cat. How's your MPG and do you smell anything that smells like rotten eggs and I would do what Blue suggested and get a catted downpipe from ZZP or Headers and do the work yourself. Much cheaper route.
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  2. #2 Re: I Need Help!!! 06 Grand Prix 3.8 V6 Catalytic Converter 
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    I'm not keeping extensive records of when/how much/calculation from point A to B, but id have to say around 19mpg? ill get back to you in a few days and give you a more educated guess. and ya thats what i was going to do but the actual garages told me that any after market cat is just a waste of time and money. so are you saying that they are just trying to scam a kid with basically no knowledge of cars? because has been in the back of my head since the first place i called, told me that. so ZZP and/or Headers sell trusted, reliable cats?
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