Cat-Back Exhaust

[loanshark04]

How much power does a cat-back exaust system add to your truck? is it noticable? does the exhaust system give your truck a deep sound when you accelorate or like a race-car sound?

 

[RTStork]

An aftermarket exhaust usually gives a mild rumble at idle then a loud deep tone at acceleration. I noticed some horsepower and torque gains with my setup. I aslo picked up 2mpg with the exhaust and cut air box.

 

[aldive]

The power gains really depend on the design of the system

The sound is directly related to the type of muffler you have.