Quiet exhaust recommendations?

Hi, I was hoping somebody had some suggestions for some quality quiet cans for a mild 360 with long tubes into 2 1/4 pipes. I have a 75 power wagon and my 71 Scamp both with flowmaster 40's and would like to have the car be a little sneakier sounding while still flowing nice. Was just going to dump the new exhaust in front of the rear axle with some quieter mufflers and maybe cutouts??? Thanks in advance-