This two-piece stainless 3″ pipe is a direct bolt-on replacement for the original highly restrictive down pipe that now goes from the turbo to your catalytic converter. Easy to install! Must have the factory GM headers on your car because it ends up in the same spot as the original down pipe. Down pipe comes complete with instructions, clamps and some tops on how to port the turbo exhaust housing before installing this new down pipe. Fit is excellent because of it’s unique two-piece design. For 1986-87 Turbo Regals.