Tbh, I really like the twin circle pipes.. Really sets the back end off.. Better off doing a quick PhotoShop and seeing how it looks.. But, if it was me, I'd keep the standard, then go for a perfromance turbo back or maniford back.. Because I really like the back end of this car.
Suspension is a must.. Get it lowered and it will look even better.
Little things make this car stand out IMO.. Like painting the grille surround blue, or wrap it in matte black.. Yellow LaminX on the DRL's/Fogs.. and loads of other things..