4' exhaust system

[fordpower21]

I’m thinking of buying an exhaust system. My options are FlowMaster or MagnaFlow. Are these two systems the right choice for my 2002 f250 7.3.
MagnaFlow:
Material: 100% Stainless Steel
Tubing O.D. Size: 4in.
System Type: Turbo-Back
TIP O.D. Size: 5in.
TIP Quantity: 1
Single/Dual: Single
Exit Position: Rear Side Exit
FlowMaster:
3/4 Ton / 1 Ton
7.3L Powerstroke Diesel
2 & 4 Wheel Drive, All Wheelbases
All 4.00" Tubing From Turbo Back
50 Series H.D. Muffler
5.00" Logo Embossed Stainless Tip
American Thunder
SOS

thanks.