I am new to this, I order a Ford Explorer ST 2021 four months ago for my wife and just recently she saw on youtube some that are modified and wants to modify hers. Prior to the ST she drove a 2017 Rav4, so a HUGE jump on ponies for her. I wanted to know from you all what do you guys think would be the best start to upgrading performance to the car, I had in mind a cold air intake or a k&n drop in filter, assuming that I would not need to tune up the car for those mods, correct?