Have you ever wondered how seriously that guy in the little Japanese car listened to his after market muffler? Well, based upon this page of samples of various muffler configurations and posibilities I’m guessing that guy with the loud muffler growl didn’t just end up with that sound by mistake. He probably picked that particular muffler sound design. There is a whole world of muffler pipe growls out there….Me, I went with the stainless steel Magnaflow. Purely for it’s tone. Well, actually it was the only stainless muffler they had in stock.