Hello everybody, I might be an old guy, but, I'm new to this forum. I've been a gearhead my whole life, I've had 2 1968 GTO's and a brand new 1972 GTO and a 1974 Grand Prix many years ago, as well as many, many motorcycles. Currently, my everyday ride is a 2003 FX4 F150 that's in brand new condition, a 1997 Harley Heritage Softail, a 2010 Harley Electra Glide, (all tricked out), and a 1969 Grand Prix SJ. My 69 SJ is completely stock, including the exhaust. I want to replace the stock mufflers with ones that will have a nice deep throaty rumble, to make that 428 sound good. I don't want anything "quiet" and like I said, everything is stock, so it's not like it has a nice choppy cam in it. What would youz guyz recommend? Thank You for your input!