Corsa 22-24 Cadillac CT5 V Blackwing 3in. Cat-Back w/ Active Exhaust - Dbl X-Pipe - Twin 4.5in. TipsCorsa 22 24 Cadillac CT5 V Blackwing 3in. Cat Back w Active Exhaust Dbl X Pipe Twin 4. 5in. Tips Corsa 22 24 Cadillac CT5 V Blackwing 3in. Cat Back w Active Exhaust Dbl X Pipe Twin 4. 5in. Tips Corsa's Cadillac CT5 V Blackwing cat back exhaust will give your Blackwing the sound it deserves! The system integrates flawlessly with the stock Cadillac Active Exhaust valve assembly giving the driver full control over the driving experience. Simply choose