Twin 2.5" or single 3" exhaust?

[WRX]

Wondering what you guys think is best for 5.7L engine?

Anyone have experience/sound/power stats?

Cheers

 

[M01ST]

Sound in my opinion: 2 1/2 inch
will upload my dyno results when its done at end of the week possibly to compare to someone elses?

 

[Not_An_Abba_Fan]

Twin 2 1/2" definitely. I can do you a good price on one if you want one.