I found a good sound clip of a boom tube for any1 considering them on their car. This particular one is a 4" oval in with like 12" slant cut exit by passenger side. They are made by Dr. Gas and used by NASCAR for their exhaust. Ungodly loud and deep at any RPM. But quite pricy. Im thinking of trying out my delta force 10 series one chamber flows on my 466 BB before i buy somethin else cause they're almost brand new and sound so good on the 5.0. Go to www.webafile.com login:explodinggopher pass:5738589 click on boom-tube_NataSSInc.mp3 Here is what it looks like:
I also fixed my cars problem with crappy idle and missing/backfiring at low and high rpm. It was the spark plugs lol.