It's aluminum, so it cuts really easily. 32-tooth blade in the jig saw, clean-up with a sanding spindle, then touch up the black paint on the cutoff ends. Pretty simple DIY project, once you get over the initial fear of cutting into a perfectly good billet grille.
The grille was an eBay impulse buy, from a place called (appropriately enough) Mr. Grille. They're from Norco, Ca, about 25 miles from where I live-- the grille arrived less than 24 hours after the auction ended. Great fitment, and the total was about $120 after shipping and tax. I'm really pleased with it.
I wouldn't pay $1400 for in in-dash DVD either-- dropping the $900 for the Clarion was tough enough. But it's all about the quality of the source, so it was worth it. I'd buy it again.
No turbo or super for me in the golden state of Cali unless I find a Magic GasCard on the ground-- for while the DVD player may earn a new concert disc or video compilation every now and again, 20mpg on 91 @ $2.75 a gallon? How about no.
Your gas mileage will be a direct reflection of your restraint. There are no internal changes to the engine, so it will produce the same mileage it did stock as long as you don't hammer the boost all the time.