I have straight pipe after my cat. I may put a muffler back on because I may have lost some torque and when you have 35"s you need all 188lb ft.

As long as you have some pipe after the cat its not too loud and I have never been harrassed about it.

94 Rodeo 3+3 lift Red)
95.5 Rodeo 1" Body lift Dana 44' front & rear 4.88 gears 35"s 176,000 miles Optima Yellow top InexAir Co2
front winch bumper custom rear bumper, Hella 500's
2004 Silverado duramax