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Power Flow Systems Oshkosh '26 Progressive Sale is now Live! Visit us at Oshkosh booths 1050/1051 or order online:
Stop by and visit us in person during Oshkosh 2026. We are located in Hangar A, Booths 1050 / 1051.
Show Special starting Monday July 6th and running through Sunday July 26th at 1700 EDT.
3 Easy ways to order: 1) At the Oshkosh Airshow, 2) Call us (386 253-8833) or 3) Order directly through our Online Store, just mention Oshkosh '26 in the comments box!
MORE POWER
Over 7,500 Aircraft Owners experience real performance gains with Power Flow Tuned Exhaust Systems. Dyno tests prove it / We Guarantee It!
30 - 130 RPM Gain for Fixed Pitch props.
100' - 300' Shorter Take-off Ground Roll.
100 - 150 FPM Increase in Rate of Climb.
3 - 5 Knot Speed Increase for slightly higher (.5 gph) Fuel Burn; OR
Save 0.5 - 1.5 GPH at Current Cruise Speeds.
2,000' - 5,000' Increase in Service Ceiling.
Improved Performance at High Density Altitudes.
15 - 20 Degree Reduction in CHT's.
MORE MODELS
MORE MODELS
Over 35 Aircraft Models Offered can now take flight with Power Flow's FAA-approved tuned exhaust systems. Experience the Power yourself!
Beechcraft 19-23 Series O-320 & O-360 powered.
Cessna -172, -175, 177, 177RG: O-320, O-360, I/O-360 & I/O-390 powered.
Cessna -180, -182, -185, -205, -206, -207, -210: O- & I/O- 470, 520, & 550 powered.
Grumman AA5, AA5A, AA5B, AG5B: O-320 & O-360 powered.
Diamond DA40 I/O-360 powered.
Mooney M20 -B, -C, -D, -G with O-360.
Mooney M20 -E, -F, -J with I/O-360 or I/O-390.
Piper PA28 140 with O-320 or O-360 or Piper PA28-150, -160, -180 Below S/N 1761 with O-320 Or O-360.
Piper PA18, PA20, PA22 0-320 or 0-360.
Robinson R22 Mariner, HP, Alpha, Beta, with O-320.
Symphony OMF-100-160, SA160 With O-320.
COMING SOON:
Piper PA -12 (excluded from Osh '26 discount)
MORE SAVINGS
Save Up to $900! It doesn't get any easier than this to upgrade your plane's powerplant!
Oshkosh Progressive Discount (Up to $500 Off)
This is a "strength in numbers" bonus. For every five orders placed during this sale, the discount for every customer increases by $100.
How it works: Whether you are the 1st order or the 26th, you receive the full final discount reached.
The Track Record: While we can’t predict the future, we consistently reach the $200 level and frequently hit the maximum $500 bonus.
The Lead Time Discounts (Up to $400 Off)
Choose what you want to save based on your schedule. Generally, those who can accommodate a longer production lead time save more. Four & six cylinder tuned exhaust systems are eligible.
Need it sooner? Systems shipping by 8/31 feature our standard competitive pricing with no Lead Time Discount.
Lead Time Discounts: Planning ahead? Opt for a later ship date to unlock additional savings of up to $400, depending on your specific aircraft make and model.
Ship-by dates are subject to change based on production capacity. Learn more about Lead Time Discounts.
Ship By Dates are subject to change based on production capacity*
Oshkosh '26 Progressive Discount
As you may know, we typically offer a very generous Progressive Discount as our show special at Oshkosh '26 every year. We know everyone can't make it to the show, so the Oshkosh '26 discount is open to all orders, placed at the show, called in to our offices, or from our website.
Starting July 6th and running through Sunday, July 26th, 2026 at 1700 EDT, our standard Pick Your Price / Lead time based discounts will remain in effect. For most systems, that means a retail discount of $300.00 with shipping in the Fall. With our Virtual Show Special, we will increase that discount by $100.00 for every five orders placed during this special event as outlined in the table to the right.
How does that work you ask? It's simple: Each and every certified, in production, not introductory priced exhaust system ordered (Piper PA12 and Experimental are not included in this sale) with at least an six week lead time from 7/6 through 7/26 counts toward the total. You already know what lead time discount you are getting. Now sit back and encourage your friends who have been thinking about a Power Flow to step up. Once we have 6 orders, everyone gets a bonus discount of $100 taken off their orders. When we hit 11, and everyone saves another $100, and so on. The maximum discount this year is $500 for 26 or more orders.
Click here to order your kit from our Online Store.
Be sure to include Oshkosh '26 Discount in the notes to lock in additional additional discounts earned. Additional discounts will be added to your invoice within ten business days after the end of the sale.
Funding a Deposit
A deposit of $1,500.00 will confirm your order and automatically qualify you for the highest discount level attained during the show. We will schedule shipments based on the order in which deposits are placed. The remaining balance will be due ten business days prior to your system’s scheduled ship date. As has always been our policy, your deposit is 100% refundable should your circumstances change.
If you prefer, you can call us with your credit card account info at (386) 253-8833 when you have about 5 minutes to complete the transaction. Please do NOT e-mail your credit card info to us. You can also order through our website and these orders will be included in the discount.
Upon receipt of your deposit we will contact you again to confirm the configuration, ship by date, and applicable discounts for your order. Be sure to include 'Oshkosh '26 2026 Discount' in the notes to lock in additional additional discounts earned. Additional discounts will be added to your invoice
by August 14th 2026.
Click here to order your kit from our online store.
A Few Points to Keep in Mind
#1) The Show Special applies to our in production, FAA Certified Legacy 4 cylinder and 6 cylinder Power Flow Tuned Exhaust Systems. The Piper Cub PA12 and Experimental exhausts are not included in the Oshkosh '26 Sales.
#2) Everyone who places an order while the promotion is in effect gets the maximum discount attained so it doesn’t matter whether your order is the first one we receive on July 6th, or the last one we receive on July 26th. You’ll still get the full discount shown above based on the total number of orders we receive during this promotion.
#3) The lead times and ship by dates will have to be adjusted going forward based on our order backlog and production capacity. Our product web pages will be kept updated with the current lead times. We will confirm those numbers with you before we process your deposit payment.
#4) Want an exhaust system as fast as possible and still get the show bonus? You'll have to wait a minimum of 6 - 8 weeks from date of order until we can ship, but in most cases we should be able to do that. Need it sooner than that? We can ship sooner than 6 weeks, but you won't be eligible to participate in the show special.
You can check on our progress (and the current discount level) by refreshing this webpage whenever it’s convenient. If and when the deal gets too good to pass up (remember that the Show Special discount is in addition to our standard Pick Your Price lead time based discounts – currently as much as $150 to $400 for most systems), you can just click on the secure, encrypted Payment Link below to place your order or order on our website.
The Following Terms & Conditions Apply to this Offer
Production slots at the discounted prices are on a first come first serve basis and are limited to available capacity. A $1500 deposit is required to lock in your production slot, options selection and lead time savings amount.
Sale offer subject to change without notice.
Valid on New Complete Tuned Exhaust Kit orders ONLY, not valid for prior orders.
All deposits are 100% refundable in accordance with our money back guarantee. See guarantee for details.
Cannot be combined with any other offer (except Refer a Friend).
Valid on current production STC'd kits only. This offer does not apply to systems currently under development, exhausts for Experimental aircraft, or Introductory priced systems.
Valid from July 6th through July 26th only. Your deposit must be received by July 26, 2026 at 1700 (EDT) in order to qualify for this pricing. Final balance must be paid within 30 days of promised ship date or your order will be subject to cancellation.
Minimum 6 to 8 week lead time required for Oshkosh '26 Bonus.
For internet orders, list the shipping speed and / or discount level / dollar amount that you are selecting in the comment section of the order page, and an updated invoice will be emailed to you along with our estimated ship date.
We will credit your invoice no later than August 14th, 2026 with the additional Oshkosh '26 bonus discount dollar amount.
Still reading? We applaud your attention to detail! Please be assured you’ll love the exhaust system. We guarantee it in writing and will give you your money back if you aren't delighted with the performance gain it provides for your aircraft. So what are you waiting for?
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