The 4″ Resonator-Back Exhaust (S5246AL) from Armor Lite is a high-performance exhaust system designed for street use. It features a single side exit and a stainless steel tip, providing a sleek and stylish look. The resonator-back design helps to reduce exhaust noise while improving engine performance. This exhaust is perfect for those looking for a balance of style and function, making it a top choice for car enthusiasts.