Hi I just got a 2014 si sedan and I was wondering what I can do to build power. Everything but a super charger and turbo. I want it to look stock except for a header and intake. Just incase I ger pulled over that's all the cop will see. So if I add a header, intake, cams, lifters, and flash pro ect.. Any idea what power I can build and anything else I can add and keep it looking stock?