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yes, they are legal, true dual pipes are the best type of pipes that you can buy. compared to "single and a double pipes" which aren't loud at all. of course there are straight pipes which have no cat converters, but those sound like crap. so basically if you have true dual pipes you have the best money can buy

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Q: Are true dual exhaust legal in pa if you have two cats and two mufflers and it exits out the back of the truck past the body?
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