1 IE Catback Exhaust System For Audi B9 B9 5 S4 Integrated Engineering
Jimmie Summy edited this page 6 days ago

A cat back exhaust system, also known as a catback exhaust, is an aftermarket automotive exhaust system that replaces everything in the exhaust system from the catalytic converter to the tailpipe. Cat back exhausts are available in various configurations and materials, allowing drivers to choose the one that best suits their needs and preferences. An aftermarket cat back exhaust might be the perfect upgrade that can enhance your Dodge Charger’s performance and road presence. Unlike its OEM counterpart, it boasts a less-restrictive construction, so it can release more exhaust gases. A cat back exhausts is also designed to install behind a catalytic converter, so remains emission compliant. In addition, its design lets your vehicle generate a more distinct exhaust sound.

By running pipes from the catalytic converter to the muffler and from the muffler to the exhaust tip, cat back exhaust systems improve exhaust gas flow, providing small performance boosts. However, your performance gains may be limited if your catalytic converter restricts gas flow, as a catback exhaust system is installed ‘downstream’ of the converter. Header-back systems are increasingly rare, namely because of modern emissions systems. Since removing your vehicle’s factory emissions components is highly illegal, the previous two options are more common. However, header-back systems are still available for some older, pre-emissions applications. In these cases, header-back systems offer more performance and volume than cat-back or axle-back systems