The Power Flow Systems tuned exhaust has been installed on my Skyhawk(0-320/E2D 150hp). The stock muffler and related pipes may be gong to someone in Florida. The carb-heat box is not part of the deal and remains available for another's need. Good condition, inspected/passed in recent annual; photos available. Email me for further information. HR(climbing out faster, after a shorter takeoff roll) A&P is happy; short stack PFS will allow easier cowl removal.