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2000 5.4 idles rough....sometimes.

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Old 12-15-2015, 03:07 PM
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I know the muffler has a few rust holes and it has the broken manifold bolts so I know it leaks. And so does everyone I drive by. Lol. I'd like to find a new bolt on exhaust system from the manifold back because I'll be deleting the cats and flaring it out to 3" after the Y with a flowmaster 40. All I can find is cat back and none of the shops will mess with the cats around here. We don't have emissions tests in NE but shops aren't allowed to delete them.



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