Hey guys. So I recently bought a 23 gmc duramax 6.6. I work it to the bone. It’s a very quiet truck. Looking for some options to really open it up. What are some of the first things I should do to it to be able to achieve a louder overall sound and maybe a flutter eventually. I already put 60k miles on it towing. I would really like a deep sound with that whistle. I’m new to duramax so go easy on me.