I own a CRV and want to mount a 21" Led Bar and 2 4" light boxes. How would be the best way to go around that?

 

Where do you want to mount them? A 20 will fit behind the grill on the front bumper (the actual bumper, not the cover), but it may not give you the ideal light angle you're looking for. You could do the 4" pods like cop lights, on the pillars, but how that would look would depend on what lights you have.