/6 dual exhaust. bad idea?

I have a dual header setup with 2.5" piping with a Y into one 40 series and it dumps off right after the muffler, it sounds great! Ive had tons of people ask if i have a big block, anytime I pop the hood people are surprised at what they see.. Ive heard a slant six with the same headers on as mine, with dual exhaust, running coffin mufflers and it sounded like a lawn mower so don't go with coffins whatever you do.. haha The headers are a great power booster too.