Remove the cat use the muffler not the muffler delete pipe. Just swapped mine and it's so much better. I should of saved my money on the delete.

hey guys thanks for the info on the cat delete will give it a try...

x2 I run a MBRP 5", no cat w/ muffler and it's perfect. I love the tone! Under heavy load pulling the trailer it will get loud but you can still have a conversation in the truck... :rocking: