Damn I just saw you already ordered. Hold off and get the MAC cat back they sound and fit much better then the Flows, I switched mine awhile back and have no regrets at all, Call Modern Mustang they had a lot of MAC stuff on the floor 800-688-7798 nice guys to deal with,.
Rick
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My Ride Check Out My Site 91GT, Holley SysteMAX II Kit-Heads 2.02" x 1.60",Full MAC exhaust 1-5/8" Long tubes, 2-1/2" O.R H-Pipe, 2 1/2" cat back, 12" K&N Filter, RNH PERFORMANCE Ram Air, Ron Davis Radiator, Full Suspension,3:73's, Welds, Best on new motor-12.60 @ 108, no traction 1.98