Whether you are repairing your exhaust or making a custom turbo set up, Khaos Motorsports Flex Pipe will help you get the job done. Each end is sized to slip over any type of tubing and ready to weld. Double braided to ensure durability and made from stainless steel to ensure it will last as long as you have the vehicle. Be sure to check out our other listings as we have the parts to help with any exhaust or turbo set ups. these are commonly used on Audi A4 A6 S6 volkswagon.