I did this on my M8 pipe. Not too hard to install, looks cool, dramatically drops the underhood temps. Mutes the high pitched end of the sound spectrum, not really quieter, just slightly lower pitch. But, you must grind any welds that are protruding, even a little bit, because after awhile any spot that isn't smooth will start to cut through the wrap from the vibration. Then it starts to fray and creates a mess with all these little fibers floating around under the hood. Mine lasted 2 years, had I smoothed out the pipe first I'm sure it would've lasted longer.