2020 peterbilt 389 x15 delete question

[Fatbooi389]

Hello everyone I’ve got a 2020 peterbilt 389 with a deleted x15

We just got the truck deleted and I noticed that the power was not the same as when it had all of the dpf stuff working. I since found out that the truck has been detuned from the 605hp it originally had to the 565 tune. My question is can we bump the HP back to 605 on a new fleet calibration or do I need to get a whole new tune it’s a cm2350

Thanks for all of the help in advance I’m still new at this stuff and learning. I’ve got insite and calterm with a usb link 3 so if someone can point me in the right direction that would be great