Power Flow Systems, Inc.
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Piper » 1. PFS - Bolt-On Tuned Exhaust Kit: PA28-140 - LYC.O320
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Product Images

Front view of Cherokee - Short Stack

Front view of Cherokee - Short Stack    Cherokee Short Stack tail pipe    Classic pipe on Cherokee    Ball joint for Classic pipe    
Pilot side view    Co-pilot side view    Close up of co-pilot side headers and collector    Classic tail pipe exit through lower cowl    
Short Stack exit through lower cowl    Short stack intermediate tube and tail pipe    Defroster scat    Cabin heat splitter (if only 1 defroster line cap off one side)    
Short Stack through lower cowl    Front view of Short Stack    Side close up of Short Stack    
Product Information

Bolt-On Horsepower. Complete replacement of your exhaust system. For all PA28-140 aircraft with Lycoming O-320 engines.

Note: if you have a Lycoming O-360 engine or an early model (1964 or earlier PA28 below s/n 1761), please click here to go to our product page to select the appropriate aircraft.

List Price for Lycoming O-320 engine $4075
Web offer













MORE INFO Click Here Request A Quote Click Here

The concept is simple, out with the old, in with the new. By effectively evacuating each cylinder the Power Flow is capable of giving your Cherokee a 30-50% increase in climb. You will also notice an increase of 30-130 more RPM during takeoff, climb and in cruise. Want to save fuel? You can use less throttle to go the same speeds and save up to 2.2 gallons per hour.

The Power Flow is a versatile, quality constructed, complete replacement of your entire exhaust system. You are in control. For more power, use the extra RPM. For fuel savings, throttle back and fly your pre Power Flow airspeeds. The entire system is constructed from stainless steel and includes minimal structural welds in the cabin heat section for improved safety.

All necessary parts are included for easy installation. Our customers report an average install time of between 5-7 hours. The system can be installed by one of our dealers, by your local A&P, or you can fly your plane to us for a local install. Fly in with a standard Piper, fly out tuned for performance.

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).

Still not sure if a Power Flow is right for you and your airplane? For complete peace of mind, check out our:


Click the RFG graphic above for more details.

*For more technical information please see "Tuned Exhaust Explained" on our home page.


Need More Speed for Your Piper? Please visit Laminar Flow Systems.

  • Instructions Document
  • Product Brochure
  • ICAWS Document

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    Challenger Kit - PA28

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