Description: Give your vehicle a throaty purr with a Cadillac Accessories Exhaust Upgrade System. This system helps to reduce restrictions in the exhaust pipes and expands the diameter of stock pipes- allowing your engine to breathe better. This Cadillac Accessory can help to personalize- customize- or optimize the capability of your vehicle for your lifestyle and use. Upgrade the look and sound of your CTS Sedan with this Performance Exhaust Upgrade Package.