The parts fiche shows the same pipes for 2003-2016. The ECM changed in 2008, so there may have been a fueling change.
--Mark
Mark,
They are not the same:
'03 -'07 MUFFLER, R. 18310-MCS-L01 $609.71
'03 -'07 MUFFLER, L. 18410-MCS-710 $609.71
'08 - '12 MUFFLER, R. (COO) 18310-MCS-305 $987.07
'08 - '12 MUFFLER, L. (COO) 18410-MCS-305 $987.07
'08 - '12 COP
MUFFLER, R. (COO) 18310-MCS-305 $987.07
MUFFLER, L. 18410-MCS-D91 $987.07
Now, what's interesting, it looks like they quit making the "Cop" mufflers and looks like they are now marking them the same as the '08-'12 mufflers. The last time I looked (maybe two years ago), there was a difference in the part numbers and the prices of the cop and non cop mufflers for those years.