Prefer local pickup if possible (I am in southwest Houston). $70 for Y $20 for midpipe obo. Included a picture of the inlet diameter as you can see it's 2-2.25 inches. Note that the Y is from the FX and has no dynamic dampers (aka "hockey pucks") nor are there mounting points for them. Also have OEM G37 coupe springs for 10 or 20 bucks but I did not take a photo of them.

 

Both sold.