So a catback should give you better flow utilizing the Cats for the backpressure the engine needs ?generic808 wrote:A cat-back is just that, from the catalytic converter all the way to the muffler. On an axle-back, the piping starts from the axle back to the muffler. They both use aftermarket mufflers, just the piping runs further down on a cat-back.
Correct. Some people remove the cats, but that back-pressure is needed for lower end torque.leeroy300 wrote:
So a catback should give you better flow utilizing the Cats for the backpressure the engine needs ?