This MBRP exhaust is great for those who love to drive their Ford Mustang on the street or at the track. Whether you're a daily commuter looking for better performance or a car enthusiast seeking an upgrade, this exhaust is for you. It features a 3 - inch dual split rear cat - back design with quad 4.0 - inch dual wall T304 tips. The T304 stainless steel construction makes it durable and easy to maintain, even in tough driving conditions.