Corsa Active Valved Exhaust Systems are designed to be the perfect upgrade to your vehicle's exhaust system, providing you the with sound you want from your Ford Mustang. The "active" sound progression maintains a quiet start and amplifies the sound throughout the gear range. Corsa's Patented RSC Technology eliminates any drone when cruising down the freeway. These bolt-on exhaust systems are constructed from premium stainless steel with a choice of polished, black or gunmetal PVD tip finish for superior durability and long-lasting good looks.