I assume you are talking purely cosmetic, right?
First of all, it looks great as-is, and everyone has different tastes, so take our suggestions with a grain of salt.

But, springs and tint should be on your list for sure, but I would also ditch/replace the V6 side stripes.

I would paint the front lip black, or paint the sides MG (better yet, get 3DC side skirts, and have them painted to match) to improve the visual flow from front to side.

A hood might be something else to look into (I like Saleen's, Maier's and Steeda's cowl hoods myself)