okay before i start, Im new to this car scene and not the best mechanic or even decent....

I want to plastidip the chrome part of the grill on my RR Evo X... Can I please have a step-by-step guide on how to do this without over spraying it into my intercooler. I would appriciate it

 

Either Remove the bumper or.....

Exacto knife with lots of plastic trash bags & painters tape...
Or you could go buy a thin plastic painters tarp, tape to car and cutout area you want to plastidip.

1. Apply plastic and trim to fit.
2. Tape in Place and finish rough edges with tape so only area you want to paint is exposed.
3. Apply several THIN******* Layers, letting them dry as directed by can.
4. Be cautious when washing car as you can easily cause it to start to peel.

 

I know you said you wanted to plasti-dip them, but they aren't that expensive to replace with the stock parts, especially if you like everything looking as good as it can.