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Power Strokes
7.3 Aftermarket
4" straight or muffler.
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[QUOTE="JD3020, post: 124263, member: 373"] Nope, its straight-piped. In the cab all i hear is the motor, except at slow speeds or with the back window open. Then i hear some exhaust whistle, but its still not much. Only odd thing is it stays 3" for about 16" past the downpipe then goes to 4". I'm not sure why its so quiet, but its freaking quiet in the cab. Now if i'm somewhere where it can echo, like in traffic or town, it freaking barks and everybody just looks at me so i know its loud. But i did drive around for 3 months with literally just the downpipe and i thought it was fairly quiet in the cab, so i may be partially deaf or something. LOL [/QUOTE]
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Power Strokes
7.3 Aftermarket
4" straight or muffler.
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