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
i had a truck.