Welcome to the forum! The cheapest and easiest way to extract the most power is to feed it 91+ top tier fuel. And of course keep up on the maintenance and service. Be sure to check/change and regap the spark plugs too, GM wasn't great about gapping the plugs on some of the early model years.I just bought a 2012 Cruze 1.4 turbo. I want to slowly make put some upgrades on my car to get better performance out of it.