New – July 2019 -Power Flow Systems, Inc. acquires assets of Leading Edge Exhaust, LLC.July 15th 2019

July 14, 2019: For twenty years, Power Flow Systems, Inc. has been providing high performance exhaust systems for many iconic General Aviation aircraft. There are now well over 5,500 Power Flow systems installed and flying on aircraft worldwide. We are More

Cessna 185F/ IO-520D STC Approved!!August 27th 2013

Attention Cessna 180, 182 and 185 owners!! Cessna 185F/ IO-520D STC Approved!! We were notified by the Anchorage FAA/ACO office 185 STC was issued today, August, 19, 2013! At this time we are accepting new orders for the C185PMCF Production Build More

Noise test data for the Cessna 180, 182 and 185 Aircraft has been accepted.July 4th 2013

Noise test data is being sent to FAA AEG for final review. The noise test data will be applied to all models listed on the PSCP. The first aircraft is the Cessna 185 -185E with the Continental IO470 F model engine as well as the C185 F with the IO520D model engine. Other 180, 182 aircraft with the IO 520D and / or IO470F engines with an approved installation will be approved on a different STC.

“Warning Beware!”April 6th 2012

elbows were not sent as promised by “Jim Mendez”. It is my understanding he is the owner of “Tube Technology”

Attention Cessna 180, 182 and 185 owners. Check out the US Patented “Power Monster Cross-Flow” dual exhaust system offer below.May 1st 2009

Be one of the first to get a Leading Edge Exhaust Systems’ high performance dual exhaust system!! Please provide the following information to have your name added to the Cross Flow Dual Exhaust “Build List”. You will be assigned a priority More

Think Green!! Save on High Fuel Costs!!June 11th 2008

Leading Edge Exhaust Systems´ hand built, custom, equal length exhaust collectors reduce back pressure (balanced to .05″ psi between all cylinders) and balance the engine operating characteristics so well that a single horsepower is produced with less fuel when comparing More

Announcing the pre STC advance purchase discountOctober 3rd 2007

Leading Edge Exhaust Systems is in the process of discussing production of the US Patented Cross- Flow dual exhaust system to fit the Cessna 180, 182 and 185 model aircraft with some prospective investors. They have asked us to corroborate More

The PA-18-150/160 Hp model exhausts were recently approved to include the new RMW and CAHF as options to the original STC´s.April 1st 2007

The Revised Muffler Weldment, RMW, and the new Carburetor Heat Flange, CAHF, are now approved for all models shown on the approved model list, AML. The 180 Hp model is currently undergoing carburetor heat testing and should be approved soon. More

Seeking domestic and international dealersSeptember 5th 2006

Leading Edge Exhaust Systems, LLC, LEES, is seeking motivated, experienced, well respected general aviation businesses to become LEES´ domestic and international dealers.  If selected, you can become a distributor for LEES´ popular FAA/PMA approved Piper and Cessna exhaust systems. LEES More

Check out our web specialsAugust 12th 2006

Leading Edge Exhaust Systems, LLC has developed an Exclusive Website Offers page that will feature monthly discounted sales exclusive only to their website. To review the monthly sales specials just click on the button “Exclusive Website Offers” button located on their home More

Pre 55 Cessna 180 dual exhaust systemJuly 20th 2006

Pre 55 Cessna 180 dual exhaust system. We have expanded the list of aircraft to include more models even though pre-55 has grandfather rights regarding noise testing. No noise testing is required provided the logbooks can document it was flown More

Maule manufacturing and LEESMay 6th 2006

Maule manufacturing and LEES are in the process of collaborating to build a new equal length component dual exhaust similar to our time proven 2000 hour/20 year Cessna 205/210 dual exhaust system. Just as soon as we get an IO540 More

GlasAir Sportsman 2+2 prototypeMay 1st 2006

GlasAir Sportsman 2+2 prototype was completed utilizing LEES power proven Super Cub muffler.  Four new risers were developed using our Equal Length theory. The pipes were  sent to LY-CON Engine Rebuilding in Visalia, CA., phone number 559-651-1070 where dyno tests were More

150Hp equal length Super Cub High performance exhaust systemApril 20th 2006

LEES 150Hp equal length Super Cub High performance exhaust system was installed on  Murphy Rebel in Canada. The owner is in the process of getting us some photos to publish. He said rpm’s increased both static and in flight. In More

Piper PA-12 150/160 Hp short and long engine models passed FAA testingJanuary 16th 2006

The Piper PA-12 150/160 Hp short and long engine models passed FAA testing and now are PMA approved for the Aircraft Model numbers PA-12 and PA-12S.

News from the ArchivesDecember 18th 2004

The Piper PA-12-150/160 Long mount test plan will be submitted shortly as a plane has been identified to be utilized during the upcoming climb/cooling and carburetor heat tests. The test plan is supposed to cover both the 150/160 “Short mount” and “Long mount” applications. More

Dyno tests just completed comparing Straight pipes, Stock Super Cub, and Sutton exhaust system.March 16th 2004

Read the eye opening results… The first thing everyone should be aware of is that LEES requested the following dynamometer testing be accomplished at LY-CON Engine Rebuilding. LY-CON had no involvement other than performing the tests at LEES’ request. If More

Our Custom Pipes are built to order - be sure and get your requests in early. (more...)


"3200 maintenance free hours "

I have used a Leading edge Exhaust on my Cessna 206 for 3200 maintenance free hours.

S. Elg

Regal Air
Anchorage, AK full review

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