Blacking out the stock tailpipe is really easy: Purchase a pack green scotchbrite pads, the best place to get them is in the cleaning isle at Home Depot. Grab a pad and soak it in paint thinner. Scrub the tailpipe like crazy. You will use at least 1 pad, maybe 2. At the first sign of the pad wearing out replace it with a new one for the most effectiveness. When you’re satisfied that every square inch of the tailpipe has been scrubbed clean off the paint thinner with a rag soaked in acetone. Use a piece of wire thru the stock hanger, and hang the tailpipe on your garage door or a tree, etc. Shoot 2 coats of high temp black paint.