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Old 01-23-2014, 02:07 PM   #6
Grandpa
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Join Date: Jun 2012
Location: A fender ahead of BlownAltered
Posts: 7,562
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Old school 5.0s are the best sounding Mustangs ever with Flowmaster 40's.

Full bolt on's (h/c/I/longtubes) will typically get you around 300rw NA give or take.
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