Does anyone know what the stock pipe size is for a 2008+? I measured it in the dark, so I'm not sure that I'm correct about what I came up with. It looked to me as though it was 2.5" from the cat to the muffler and then 3" from the tailpipe end of the muffler back. Thanks.

 

On the 2006 it was all 2.5"

 

It is like 2.75 give or take some. Probably metric

 

on the 08's, the tail pipe, muffler back is 2 3/4. on the 05-07 its 2.5 all the way.

 

I visited my nearest auto parts store after work today and the latest year they had in the database was 2009. The employee I talked to said the piping was 2.5" in and out of the muffler. Unfortunately, that leaves me worried that I won't purchase the right part.

 

I installed a 3" Borla on my 08 (which is 2.75), the muffler shop just fabbed up a pipe with a little stretching to make the transition.

 

X2 its not a big deal if the new pipe is a fraction bigger or smaller, the shop will be able to transition it

 

Hah, I know they can work out a transition into any size (I had something like that done on my Ford Ranger). I was just trying find exacts. In any case, thanks everyone.