Without modifying the factory calibration the best you can do is address things that could potentially cause power to be reduced.
Highest octane fuel possible.
Coolest and densest air possible
Eliminate air restriction in and out of engine.
So good gas a more efficient intercooler a cat back exhaust, drop in high flow filter and air raid intake tube cover those bases. I don't mention a downpipe because that messes with emissions and could cause issues with your dealership and your state laws.