Cat-Back vs. Axle-Back Exhaust: What’s the Difference? Looking to upgrade your car’s exhaust system but unsure where to start? You’ve probably heard terms like “cat back” and “axle back,” but do you know what sets them apart? Before investing in an upgrade, learn the differences between cat-back and axle-back exhaust systems. That way, you’ll know which is right for your truck. Location Within the Vehicle One of the primary distinctions between cat-back and axle-back exhaust s...
