going to muffler man saturday need help

[zapata41]

ok so i am installing my LT headers saturday at the muffler man and he is finishing the piping. the headers are 3" into the flanges, one guy at the shop says to run 2.5 from the headers to the y and then single 2.5 to the 40 series muffler where the piping ends. The other guy says, which is what i wanted, to run 3" the whole way, so it would be 3" from the headers to the y and then 3" single into the muffler where it ends.

so which is the better setup, my truck specs are in my sig.

Thanks
Tim

[Underpowered]

i say go with 3" all the way. if you were running dual i would stick with 2.5" but since is is a single 3" will be fine

[zapata41]

thanks, that is what i was thinking