Flowmaster vs. Magnaflow - 3.8 Mustang

Which one sounds better to you? True dual Flowmaster 50'S (Holley Force II ) on my 1996 Ford Mustang 3.8L V6, Magnaflow #15717 dual outlet exhaust on my wife's 2002 Ford Mustang 3.8L V6 along with Pacesetter shorty headers.
This is the Magnaflow exhaust on the Mineral Grey 2002 Mustang: www.magnaflow.com/products/15...
This is the Flowmaster Force II on the red 1996 Mustang: www.holley.com/products/disco...

[@DrKen03]

I just ordered flowmaster 50 series delta from Amazon for my honda city gm6 4 cylinder. Do you think im wrong to pick 50 series for my honda city? I want to increase the torque and engine efficiency of my honda city. Thank you for your reply.

[@shoveI]

It's going to sound more exciting but you probably won't see any power increase. An easy way to identify if there is potential power "hiding" in the intake and exhaust of a car is to look at the RPM at which the horsepower peak occurs. If your engine makes peak horsepower close to its rev limit that means changes to intake and exhaust won't make a big difference. These older Mustangs, especially like the red one has its torque peak at just 2750 RPM and its horsepower peak at 4000 rpm which is an indicator of poor flow and why simple changes like exhaust can make a big difference on them.