What is your question?
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What is your question?
08 pontiac grand prix 6 cylinder. Can I eliminate catalytic converter with a straight pipe
What makes this problem better or worse?
Losing gas mileage
How long has your 2008 Pontiac Grand Prix had this problem?
A few weeks
It is unlawful to do so - - will not pass required inspection - - check engine light will remain on. Additionally - Quite possibly not the reason for reduced mpg... *Hands-on* testing by qualified personnel is highly recommended!