This free-flow of gases help boost torque and performance. However, these performance systems may differ in terms of configuration and the quality of exhaust sounds. For those looking for the same MagnaFlow performance but with a smoother and moderate sound, then the MagnaFlow Street Series is highly recommended. The components of the Street Series are made from 409 stainless steel materials and the construction follows the engineering commitment of the company. The tubing is mandrel-bent and the muffler comes with a straight-through construction is tuned specifically to provide that comfortable interior sounds but performance-worthy sounds. Its design and construction are highly recommended for the Chevrolet Camaro, Impala, and Blazer. The system can also work with Audi and Cadillac units. Just like other kits from MagnaFlow, the Sports Exhaust system offers bolt-installation and requires minimum automotive skills. With MagnaFlow Street Series Exhaust System, you can count on the same MagnaFlow premium performance but with a deep and smoother sound. This works for the drivers and owners who don鈥檛 want to be distracted with too aggressive exhaust sounds. As a complete system, the Street Series comes as a complete set with tuned muffler and mandrel-bent tubing which promotes the free flow of gases. This series is constructed from 409-stainless steel and available in popular configurations from cat-back to rear axle-back. More importantly, this product has been dyno tested and matches against SAEj1169 standards.