i have some chrome parts i like switch to black. any recommendations how to do? thanks

 

Dupli color sells a black chrome kit where spray chrome parts and gives them a black sheen. It's a pretty cool product I've used in the past on my wife's vehicle. If you are looking to move to a more matte or semi gloss than you would need to sand the chrome and repaint.

 

thank you sir, i visited website and watched video. looks like a great product to blacken those chrome parts