Im a newbie to the mod/performance adjustment area of cars and I want to do something to my bonestock silver 2013 Mazda 3 sedan. Im currently saving up for Black wheels and more than likely gonna add a spoiler (not a ricer wang!) Its a modest but smooth addition that is at a decent price. But I have no clue as too what to add internally, I hear people say I should add an intake and/or an air filter while I have others saying I shouldn't because the stock parts are better. Like almost every newbie I am indeed a student on an afterschool job kinda scenario so any advice is helpful.