Corsa Exhaust Pipe Crossover. Get rid of the gargling with the Crosa Exhaust Pipe Crossover kit. The Corsa Exhaust Pipe Crossover Kit is mandrel bent from 304-stainless steel. It will increase exhaust flow, overall vehicle efficiency, and exhaust sound. The Corsa Crossover Exhaust pipe is designed to bolt onto the catalytic converters with over-axle pipe flanges to ensure proper fitment and reliability. This application will bolt on, and will include all necessary hardware for proper fitment.