Stock exhaust diameter?

[ad445]

I am looking to purchase roush axleback and it says for 2011 GT. I wanna know if its 2.75 or 2.5 so i can order it if it fit.

Thanks in advance

 

[phoneman91]

I have heard that it is 3 inch before the cats and 2 3/4 after the cats in most parts before the resonators and after the resonators to the mufflers.

 

[ad445]

Thanks

 

[grnenvy]

If you cut one of the factory resonator's in half you would see that it's just over 2in in the middle I couldn't believe it. So the exhaust goes from 2-1/4 to 2-3/4 it's crazy.

 

[Jim Vaccaro]

If you cut one of the factory resonator's in half you would see that it's just over 2in in the middle I couldn't believe it. So the exhaust goes from 2-1/4 to 2-3/4 it's crazy.

Sounding more and more like these resonators got to go!!!!:shrug:

 

[wbt]

Sounding more and more like these resonators got to go!!!!:shrug:

What I am thinking too.