I'm in a NBS 07 1500 Z71 6.0L VortecMAX. I want to add a little anger to the notes and top 400hp, so I'm thinking I'll upgrade the exhaust headers and add dual exhaust. Has anyone else done this? Which kit would you recommend?
https://www.truckforums.com/forum/members/enderwiggin-8690-albums-my-chevy-5/

 

I put JBA headers and 3in dual exhaust with a 50 series Flowmaster muffler and it sounds great! I picked a bigger muffler to make sure to minimize the sound of when it runs on 4 cylinder mode which I seemed to make a good choice since it is hardly noticable. Not loud at idle (sounds good though) and then giving it gas makes it sound pretty mean.

 

How much does all this cost?