buying a new flowmaster super 44. For my 05 im gonna need 3'' in and 2.5 out correct?....and does it matter if i get the muffler with the inlet in the center or on the side?

 

i think yours is 2.5 inlet and 2.5 outlet from the factory. and to find out if its got an offset you just need to look and see if your mufflers inlet is centered and if the exit is offset a little bit. or the other way around.

 

if you go si/so then you might wanna stay with 2.5 in and 2.5 out

but if your goin si/do then go with 3 in and 2.5 outs

 

3" in 2.5" dual out, or 3" si/so changing your exhaust to 3" will perform best.