Looking for ways to quiet engine noise has been ongoing for well over 100 years. In 1897 the first “exhaust muffler for engines” patent was granted to Milton O. and Marshall T. Reeves. The renowned Ohio inventors and auto enthusiast quickly realized a means to quiet engine noise was essential to creating a more enjoyable driving experience, prevent scaring horses, and annoying residents. To create that experience, Milton O. created a baffled muffler solution that would greatly reduce vehicle operating volume.
Since that time in 1897, mufflers have continued to evolve and today there are numerous mufflers available for quieting engine noise. The most well-recognized muffler type however is likely the “packed or glasspack” muffler that was introduced to the automotive world in the 1960s. The advent of the glasspack muffler allowed auto manufacturers to reduce engine noise through sound absorption without inhibiting airflow. When sound waves pass through a packed muffler system the loud sound waves are dissipated as they pass through a perforated pipe into fiberglass materials that fill the muffler chamber. The fiberglass materials absorb those sound waves and quiet the overall volume of the engine, quieting the exhaust note.
Packed mufflers quickly became the industry standard to quiet engine noise and today they make up the majority of readily available options for quieting car engines. Not all glasspack mufflers are created equally; the materials used and the way the materials are employed create vast differences amongst a sea of product options.
CORSA Performance Packed Resonators have been engineered for maximum impact and lasting performance. Unlike most manufacturers, CORSA’s primary vehicle for sound attenuation has long been our proprietary No Drone RSC® (Reflective Sound Cancellation) Technology. While RSC® Technology is the standard by which all other No Drone Muffler solutions are judged, RSC® Technology in and of itself does very little to quiet the exhaust note. Instead, RSC® Technology on its own is a tuned instrument designed explicitly to eliminate drone while driving. When a reduction in volume is needed, we employ a proven engineered synthetic fiberglass solution to suppress sound and reduce overall volume. Pro Series Packed Resonators are an offshoot of a 25 Year long process honing our understand of sound absorption properties.
Over the course of 25 years, we’ve engineered to exact specifications a range of packed resonator solutions that are used to control volume in a variety of CORSA Performance exhaust systems. Made from 304 stainless steel material PRO Series packed resonators are guaranteed to uphold abuse from the toughest environmental elements. Each PRO SERIES Packed Resonator features a non-chambered, non-baffled design engineered to maximize air flow and performance. Every perforated core is wrapped in a precise amount of specially selected hi-temp (Up to 700F) synthetic sound absorption material that will not breakdown or burn out. The select combination of materials and engineering provide the custom builder an ideal solution to control volume, reduce rasp, deepen, or tailor the exhaust note to their exacting specifications.
PRO SERIES Packed Resonators come in a variety of sizes (2.50”, 2.75”, 3.00”) and configurations allowing the builder to customize the acoustic solution to their needs. As a stand-alone acoustic solution PRO SERIES Packed Resonators deliver a “classic” deep exhaust note. When paired as a system with CORSA Performance PRO SERIES Tuned Mufflers, PRO SERIES Packed Resonators reduce volume, control rasp, and deepen the exhaust note. Depending on resonator configuration chosen, PRO SERIES Packed Resonators have been tested to reduce volume by 2-8 decibels.
Whether you are looking for a simple way to reduce volume on your existing vehicle or in need of a specific solution to tailor the sound of a vehicle already equipped with CORSA PRO Series Tuned Mufflers, CORSA PRO Series Packed Resonators have been engineered to outperform the competition.