The aFe ATLAS turbo down-pipe is engineered to outflow and outperform the restrictive, OE down-pipe on your 1994-1997 Ford Power Stroke diesel. The 3" mandrel bent steel tubing offers smoother transition bends for increased airflow, delivering faster turbo spool times and quicker throttle response. It's formed V-band flange interfaces with the turbo housing for a leak-free sealing surface and utilizes the factory mounting locations for true bolt-on performance. Flow and Performance: The ATLAS turbo down-pipe is made from 3" mandrel bent steel tubing offering smoother tr ansition bends for increased airflow to deliver quicker throttle response and faster turbo spool up. Perfect Fit: The ATLAS turbo down-pipe is an upgrade to the OE down-pipe and utilizes the factory mounting locations for true bolt-on performance. Leak-Free Seal: High quality band clamp and formed V-band flange interfaces with turbo housing for a complete 360 degree sealing surface. Note: This system is not currently CARB exempt or available for sale in California, and cannot be used on any vehicle registered with the California Department of Motor Vehicle. This item in not legal in NY for use on vehicles with CA emissions.