I am currently using a bra for my grill block. My car came with the bra installed. I took off the part that went on the hood (it wasn't helping anything). The part that goes over the bumper/grill on my particular car had mesh over the air intake openings. I think this was helping me all allong. I added to that by using black duct tape and blocking off the air intake under the bumper (I tried the grill too, but that was too much). I also used black duct tape to block of the fog light holes (mine didn't come with any.
The nice thing is that the bra makes it Very easy to test things with duct tape, and it is completely unnoticable because it blends in with the bra. Once I have proven the benifits and that this is what I want to permanently do, I will try to sew or glue on some black vinyl so it is more permanent (but still unnoticable).
I will try to get some pics so I can post them.
-Mr_C
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