How much hp will a 2019 sierra 1500 5.3 8 speed gain?

[Janjan]

I’m looking to add 1 7/8 long tubes from speed engineering and I bout 2 borla atak crate mufflers to make it a true dual coming from the headers and exiting to the 4 inch dual tips instead of the hdmi tips it will have no cats , I already have a K&N claiming to add 17 hp , with a good street tune what will the numbers be?