2004 crown victoria sport muffler

hey i was wondering what the piping diameter, piping offset, and case length of a 2004 crown victoria sport muffler is. or just point me to the right direction to a really aggressive sounding muffler please. when i replace the muffler i also want to get marauder tips. what kind of modifications would i have to do to get the tips on there since the stock tips are pointed downwards.

get flowmaster 40 series delta flows, marauder tips can be added by cutting off the stock tips....

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