I have an offroad H-pipe, 1 5/8" shorty headers, and Flowtech Stinger cat-back exhaust. It's about as loud as a 2001 stock GT mustang (or quiet, however you look at it). It has a nice deep, but subtle idle and has a throaty sound when you get on the gas, and it doesn't have any drone. I wanted quiet performance exhaust and was kinda dissapointed because i wanted it to be as loud as a Flowmaster 3 chamber, but it's actually quieter. This is on my '84.
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previous name: 84stangLX
'84 Mustang 5.0 LX
my LX
'89 Mustang GT
my GT