anybody ever tried one of these is this a good muffler and does anybody have a sound clip of one on a 4.2 f150 they have these for $17 at advanced auto parts and i was thinking about getting one and putting a turn down right after it would this work good

 

I use to run them on my street rods back in the early 80s in high school.On our 4.2 it will sound like a pissed off hornets nest!