My truck isnt gonna smoke some if I take the cats off will it? How much louder will it make my exhaust??

 

it will be a definite change in the exhaust note, i did the headers and cats removal at the same time.. sounds deeper, more aggresive.. and it smells a little stronger.

you will get a SES light after a day or two.

 

Mine doesn't smoke and it isn't too loud with the Magnaflow. It was louder when I had the cats with no muffler.