Straight-through, or flow-through, mufflers have perforated baffles and packing material that provides a conservative level of sound absorption while still keeping sound output moderately loud. Glasspack mufflers perform similar to resonators due to their design and lack of sound-absorbing packing material, so they tend to be louder and higher pitched. For compression-ignition (i.e., diesel) engines, the most commonly used catalytic converter is the diesel oxidation catalyst (DOC). This catalyst converts particulate matter (PM), hydrocarbons, and carbon monoxide to carbon dioxide and water. These converters often operate at 90 percent efficiency, virtually eliminating diesel odor and helping reduce visible particulates. These catalysts are ineffective for NOx, so NOx emissions from diesel engines are controlled by exhaust gas recirculation (EGR).
Next we have the option we refer to as the Cat-back system (sometimes also known as "with Front Pipe" exhaust). One of the most noticeable changes after installing a cat-back exhaust system is the sound. The exhaust note becomes deeper and more pronounced, giving your vehicle a more aggressive tone. The specific sound varies depending on the muffler and pipe design, allowing drivers to choose a system that matches their preference for loudness and pitch.
A catback exhaust system works by replacing the muffler and tailpipe with a more free-flowing design. Take full advantage of everything we have to offer with an upgraded CORSA exhaust. CORSA full exhaust systems help optimize performance and increase sound and will make heads turn in your direction every time you pass by. With our patented RSC® technology and unmatched customer experience, you'll see why we've been leaders of our industry for over 25 years. View our entire selection today, and find the CORSA exhaust that will leave your rides unrecognizable. If you have any questions about our high-performance exhausts, don't hesitate to