40 hp increas4

I am looking to add about 40 hp to my 2011 2.3l Ranger with auto tranny. I suspect it might be doable, but I don't know if it can be done without adding aftermarket cams, intake manifold, modifying heads. I hope it can be done with an air filter setup, maybe headers, tuner. , exhaust pipes/muffler/free flow cat. I have the feeling as I write this, cams are going to be required. I am looking for tried and true combinations since my days of trouble shooting state of the art products have passed due to lack of patience now known as wisdom. I am quite proficient on fuel injection tuning of Alpha N systems such as Daytona ecu o2 systems, but that system is not made for the 2.3l engine.

Any and all tried and true combinations which might add 40 hp or so will be appreciated. Many thanks. BTW, not interested in NOS or turbos.

Leo.