DAYTON BEACH, Florida  — Power Flow Systems reports that it has shipped 200 of its high performance tuned exhaust systems for installation on the Cessna 177RG airframe.

Originally, the company had no plans to develop an STC’d version of the performance enhancing system for the Cardinal aircraft.

According to Darren Tilman, Power Flow’s General Manager: “It was only after repeated requests from the well-respected (and very persuasive) Cardinal Flyer’s On-line Owner’s Group that we relented and initiated the development program.”

Since the STC was approved, nearly 25% of the U.S. fleet of Cardinal RGs have been upgraded to the new system, Tilman noted.

A number of 177RG aircraft being operated overseas in South Africa, Belgium and Uruguay have also been upgraded, he added.

Power Flow’s tuned exhaust systems have a dramatic impact on the efficiency of an engine, bringing it close to its full rated horsepower and saving on fuel burn, company officials said. In replacing the original exhaust pipes, the Power Flow system can increase rpm, rate of climb and improve engine cooling.

For aircraft like the 177RG that are equipped with constant speed propellers, there is also an increase of five to seven knots in the aircraft’s cruise speed, company officials note.