would there be any gains if a new y-pipe was made with 2.5" tubing and smoother bends with no cats into "X" muffler?
the truck would have a tune specifically for this setup as i would put the truck on a dyno to get all the readings.
i already have headers on the truck, and the idea of completeing the exhaust has crossed my mind a few times.

since i am in california and the truck is registered in texas, i do not have to worry about getting the truck smogged, so i am not worried about that stuff. just actuall gains once the truck is on a dyno

 

If you engine has any work done than you may see some gains with a tune.

 

do it i want to see the numbers

 

haah, maybe one day, i got to get another motorcycle first so i can really mess around with the truck and try different stuff