I'm looking to swap the stock muffler out for a flowmaster anyone know the muffler number I would need for a flowmaster 50 series?

i used the flow master 50s deltaflows. not the suv type.. sorry i dont remember the part number.. i had the shop install them, but i know u will love the sound.. i may be able to get the number from the shop.. id u want send me an E-mail if you still need the info