I have the black housings on my car with HID's. My GP is also black, so I think it would look comparable to how yours looks. I think they looks pretty damn good

Buy them, Just be prepared for them to leak like a sieve, so plan on taking them out at least 2 or 3 times to seal and reseal them good with lots of silicone. Other than the fact they are made like sh*t, they are fantastic, I would still recommend buying them. Check out my profile pics