2005 G35X Sedan Exhaust Diameter (E-Cutout)

[TheWalkingDead]

Looking to get either a QTP Cutout or a DMH Cutout, not sure which brand is better.

What is the diameter for the exhaust on a 2005 G35X sedan?

I like the quite stock exhaust, but it would be nice to have to option of more sound with the push of a button.

Thanks

[audtatious]

From what I understand the Y-pipe is 2.25" to 2.5" and the rest of the system is 2.5".

From what others have said the QTP does not seem to last long, is flaky, and expensive to repair. The DMH unit seems to work better and I believe comes with a better warranty.