Bolt-on a Power Flow Tuned Exhaust System and give your
airplane that shot of extra “oomph” that you know it needs. See it, Hear it,
Feel it, Try it - we give you a full 60 Day Money Back Guarantee. This boost of
power will have you flying higher, faster, and on less fuel in no time, with
only one side effect: a chronic & infectious ear-to-ear grin. The Power Flow Tuned Exhaust System is not just a
replacement - it is a vast improvement over the stock Cessna 172 exhaust
system. The concept is simple, out with the old exhaust gases, in
with the new fuel-air charge. By more effectively emptying each cylinder of
spent exhaust gases, Power Flow gives your Skyhawk a number of significant
You will immediately notice an increase in RPM (30-130 more)
as well as a significant improvement in rate of climb (100 - 300 fpm).
You are in control: Want to save fuel? You can use less
throttle to fly at your current cruise speeds and save up to 2.2 gallons per
hour. For more power, use the extra RPM (100 RPM yields approximately five
extra knots of airspeed).
The Power Flow is a versatile, quality constructed, complete
replacement of the entire exhaust system for your Cessna 172. A new Cabin and
Carburetor Heat shroud (utilizing your current SCAT tube hook-ups) is included.
The entire system is constructed from 321 stainless steel and includes minimal
structural welds in the cabin heat section for improved safety.
All necessary parts are included for easy installation,
usually requiring just 3 – 5 hours. The system can be installed by one of our
Authorized Dealers, by your local A&P, or you can fly to us for the
installation. Fly in with a standard Cessna 172 Skyhawk, fly out (usually the
same day) tuned for maximum performance and efficiency.
Each exhaust system includes an unconditional 60 day (from
time of installation) money back guarantee. If you are not totally satisfied,
for any reason, you can return the system for a full refund of your purchase
price (Refer to Shipping/Return policy for details).
Short Stack or Classic?
The Classic is our original design from 1999. It is the
“ideal” tuned length for this engine. Everybody loves the performance, only a
mother (or an engineer) could love the looks.
So, we came up with a compromise: The Short Stack is
virtually indistinguishable from the stock Cessna exhaust and will give you
about 85% - 90% of the performance gain of the Classic in a much more
If you operate on floats, frequently fly in high density
altitude environments, or simply want the best possible “Bang for the Buck” we
still recommend the Classic. Otherwise, you will be well-pleased with the
performance boost you get from the Short Stack.
Polished or Ceramic?
The Ceramic Coated tailpipe is a cosmetic enhancement that
hides the heat induced discoloration that is characteristic of stainless steel
(think of the "bluing" you see on the muffler of a motorcycle).
This discoloration has absolutely no effect on performance
or reliability but the ceramic coating covers it up permanently. Otherwise, the
polished tailpipe begins to discolor after a few hours of flying time.
It can be re-polished anytime, but if you are proud of your
172's appearance and would rather spend your time flying than polishing, the
ceramic is a nice feature to have.
Exhaust Fairing / $290.00:
This option is part cosmetic (streamlines the appearance)
and part performance. It slightly reduces the drag of the tailpipe, but more
importantly it creates a venturi which improves the air flow through the
cowling for better cooling.
Challenger Air Filter / $259.00:
The Challenger air filter replaces the disposable foam
filter media found on most aircraft with K&N's high efficiency reusable
filter media which provides up to three times more air flow to the intake
manifold of the engine. Our own testing has repeatedly confirmed Challenger's
➤A boost in manifold pressure (up to ½”);
➤An increase of 1 - 2 knots in airspeed;
➤An increase in available power on takeoff.
As mentioned above, the filter media itself is reusable. You
just clean it and recharge it (coat it with oil so the dust sticks to it) once
a year during annual and you can reuse it up to 25 times or 2,500 flight hours.
Since the Challenger system significantly improves the intake side of the
engine at a very reasonable cost, we consider it to be the perfect complement
to our Tuned Exhaust System which significantly improves the exhaust side.
Visit Blue Skies Aviation, a PowerFlow Systems Risk Free Guarantee Installation Center.
Downoad the Installation Manual