I was looking at the flowmaster axlebacks setups on cjponypats.com and they have both a dual setup othe GT an a single muffler for te V6. In the descriptions it said that the V6 muffler had 3.5 inch tips and the GT mufflers had 4 inch tips. Is this the only difference in the two or is there something in the design that makes the 3.5 inch single muffler better for a V6 mustang?

 

Nobody knows about this? One other thing i was wondering about is are the pipes going into the mufflers on a GT and a V6 the same size?

 

the center pipe (mid pipe from the cross over to the muffler) are the same size. When I did my dual exhaust - after the Flowmaster single - we just cut the "Y" pipe out to fit the "X" pipe in its place and replaced the driver side mid pipe.

 

Did you buy the dual flowmasters to start with? or did you have the single flowmaster?