Just changed the whole front-end look by installing black billet upper/lower grilles, with the fogs being tinted and hidden behind the grille, still functional.
A few days ago I finally installed a CAI, the Airaid Race CAI, along with a tune from Bama Performance, their "hybrid" 93-octane tune.
Love the looks of the CAI, and the added sound/performance.
I also have a plasti-dipped rain shield installed on top of the CAI filter since the '13 GT has hood vents that would/might drip rain water onto the filter without the shield:
"Stallion" - '13 Mustang GT SterlingGray, 6-spd man, Recaros, Track Pack. Ordered 6.6.12, born 7.25.12, mine 8.11.12. 405RWHP, 387RWTQ
"Lil Red" - '10 Focus SE Sangria Red, 4-dr sedan, auto