Invidia's all new downpipe is a great way to start adding Horse Power and Torque gains. This system was tested in turbo magazine. When combined with the cat-back section, HP gains were seen up to 60+ at the wheels with engine managment. The downpipe is constucted of 304 stainless steel with a large bellmouth will ensure longevity while enhancing power by freeing wastegate gaskets. 3" mandrel bent and bolts up to any catback or stock unit.