Just received today, not yet installed. On Thursday I will go to the silencer workshop for installation. However I just dismantled a muffler and was curious how it might sound like so I put it on the downpipe (don't press anything) and had my mate flip it over and I know damn well what it is will sound a lot better. 2010 Introduction of the F-150 with 4.6 liter engine. For the price and what I'm sure the sound quality couldn't be better.