best cat back exhust system for deep sound

[hojas]

what is the best cat back exhaust system for my sierra denali in terms of sound deepness?

gibson?
borla?
corsa?

 

[Sam Chicklets]

Dynaflo has a good bass rumble

 

[Molson02536]

Magnaflow has a great sound for the Denali and the price is reasonable. You can log on to You Tube and search for exhaust clips for your Denali and you'll find a wide variety of exhaust system clips. Good luck and hope this helps.