mufflers for around the house use?

i have hooker fenderwell headers with a 3 1/2 inch flange i use a 3 1/2 inch collecter 3 1/2 inch flex pipe and a oval muffler with 3 1/2 in and out want to get cherry bomb glasspacks 3 1/2 in 3 1/2 out the set up is easy on easy off no compliants yet but had compliants with the open headers i just dont understand its music to my ears a big block mopar with open headers