Best Pipes and Warranty in the Business!

How many times have you asked yourself, Why can´t they build exhaust systems that last as long as engine TBO? The long awaited answer you have been searching for is finally here…Leading Edge Exhaust Systems, LLC, (LEES) located in Anchorage Alaska has solved the inherent problems that have plagued the stock OEM exhaust collectors since their inception. Approximately 17 years ago, Dane Wagner, Sr., or D1 as he is known in the shop, designed and built a new exhaust collector that was unique enough to receive a United States Patent. The new design eliminated the standard stamped out half designs that have inherent internal turbulence that reduces product life as well as increases the back pressure thus reducing available power.

What led to this design was Wagner´s involvement with his FAA approved welding and non-destructive testing facility that he started in the 80´s. That was over 20 years ago and now LEES has one of the most modern fabrication shops in Alaska. The original shop repaired many hundreds of Cessna 206/207 exhaust collectors that are so prevalent in Alaska. The popular Cessna 206/207 series aircraft are used for Air Taxi, Flight Seeing, US Mail, valuable freight hauling to isolated villages and also includes very remote big game hunting and trophy class fishing. These are some of the high priority necessities required to build a successful flying business in Alaska. All of these very important business income sources come with some very big profit consuming expenses like; extremely costly downtime delays; having to get exhaust system removed and subsequently repaired by an approved facility in a timely and cost effective manner and that´s not always possible.

Having done literally many thousands of repairs was the impetus that brought this new unique design to D1´s attention and that is when the “Best Pipes and Warranty in the Business” trademark was born!! The trademark is a good explanation why 75% of the Air Taxi operators in Alaska use LEES´ pipes. D1 eliminated the internal back pressure turbulence by mandrel bending precision, 40% thicker, equal length, 321 stainless steel primary tubes that all exit in the same direction. The spent exhaust gases merge in the patented 3-1 collector and then funnel through the integral venturi that speeds things up. From there, they exit through the ball joint into the muffler and finally leave the scene by way of the tail pipe. This radically new design reduced back pressure by approximately 50% which lets the engine operate more efficiently like it was originally designed to do. By reducing and balancing the back pressure the engine produces better power with greater fuel efficiency. You can expect approximately 10 more horsepower utilizing LEES´ pipes. LEES has a Canadian distributor that claims they have a customer that had his own dyno test performed and pulled nearly 15 more Hp.

Having more power is great, but more important than that is having an exhaust system that has a higher TBO than the engine. Would you believe LEES pipes have held up through 3 engine TBO´s?  It is not uncommon after having accumulated more than 5000 hours of operations to have the original LEES´ collectors rebuilt to like new condition for a fraction of the cost of a new set. These are a few of the reasons influencing LEES´ opinion they do have the “Best Pipes and Warranty in the Business”. Tm

LEES exhaust collectors are direct replacement parts for Cessna 205,206,207 and 210 series aircraft. The Approved Model List can be researched on LEES´s website on the Cessna 205-210 Series Exhaust Collectors´ product page. The current single set price is $2750.00 with no core charge. Ask about LEES´ multi-set or fleet discount.

Quality isn’t expensive…it’s priceless! (TM)

Cessna 210 Exhaust Systrem

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Price does not include mufflers, shrouds or tailpipes.

Please note; all of our sales are sold as customer specific sales. Due to popularity and demand of LEES’ products we do not stock any of the products we manufacture. The down payment is required in order to procure materials required to build LEES’ exhaust systems. Therefore there are no refunds on down payments. We do not sell single collectors; only sold by the set.

Our FAA /PMA approved Cessna 205 through 210 series exhaust collectors utilize TIG welded construction. Each equal length (+/- 1.5″) mandrel bent primary tube is fabricated from 1-3/4″, 321 Stainless Steel with a wall thickness of .049″ and is 40% thicker than most OEM systems. They are designed to serve as expansion loops which allows them to expand and contract as each of their respective cylinder dictates without adversely affecting the other risers. Each collector now employs 2 slip joints to allow more flexibility of the risers. Current OEM systems use a very rigid design that usually results in premature cracking at the flanges and weld joints. The LEES collectors do not use beaded ends and clamps, one annoying source of exhaust leaks and they are never very easy to remove. The primary tubes are routed into our patented 3-1 collector tube sheet. This helps merge the exhaust gases through the patented venturi and out the male ball joint. The outlet end is 90% thicker than OEM resulting in a much longer life. Our collectors not only reduce back pressure and noise but they also eliminate the common transverse flow and resulting hot spots in the stock system. We have customers utilizing our systems with over 5000 hours in use on the same system and no downtime. Some of Alaska´s busiest Air Taxi Operators employ our exhaust collectors with very good results. They have very demanding schedules and operate in some of the harshest environments in the world. Product reliability was the number one priority according to our customer survey response cards. LEES collectors are direct replacements for OEM systems and require no additional modifications.

Call us toll free to check the current price of collectors. Reference the following part numbers (L/H) LEES1250256-3 and (R/H) LEES1250257-3. There is no core charge. We offer a business discount with a progressive price reduction on multiple purchases to the same customer. We do not recommend mixing our collectors with other brands due to the potential unbalance in exhaust back pressure.

The following is our approved model list:

Aircraft Make and Designation Original Type Certificate Number Certification Basis


Aircraft Make and Designation

Original Type Certificate Number

Certification Basis

210-5(205), 210-5A(205A)













Notice: Exhaust System will not fit the early model Cessna 210’s with the following Serial numbers- SN57001 through SN57840.


"The Leading Edge Exhaust collectors far outlast other systems we have used in the past. "

Charles Rodgers
Director of Maintenance
Village Aviation full review

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