You can get the neon green paint and do them yourself. I saw a Stinger with it, must be a Kia neon green they use elsewhere.
I opted for black gloss Hammerite ultima, the same as I used on my Audi A4, it's self-levelling so looks sprayed on and really glossy, takes 2 coats though to get it just right. It was £7 and on my past car, after 3 years, not even a stone chip, it's rock-solid stuff. Got to be careful not to paint too thick or paint sections that shouldn't be painted, like brake pipes ). Bad thing is, ain't no getting this stuff off easily I bet.
I choose to do this as in my past cars, the silver factory calliper silver tends to get all white and weird looking after various chemicals have been on nit from the car wash and they end up rusting due to this, even Audi callipers did it.