I wanted to show off my exhaust. I have the Doug Thorley Catback system and replaced the Doug Thorley Mufflers with Dynomax Racing Bullets. I did this because the Doug Thorley Mufflers were too quiet in my opinion. I love the new sound of my camaro. I did have a muffler delete at first and this is almost as loud as a muffler delete plus has a deeper tone than the muffler delete. As for drone, I dont hear any. When I had the muffler delete I can hear the drone kick in. When I step on the gas you can really hear the exhaust really well inside the cabin.