Power Flow Systems reported recently that the Tuned Exhaust System they developed specifically for Cessna's popular Cardinal 177RG, at the behest of the Cardinal Flyer's On-Line (CFO) owner's group (CardinalFlyers.com), has succeeded in the market well beyond anybody's expectations.
This is a companion discussion topic for the original entry at https://www.avweb.com/press-releases/power-flow-reports-success-with-c-177rg