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EAA Show special now in effect! You can save up to $500 in progressive discounts plus lead time savings of an additional $300. Hurry - ends 7/27.
MORE POWER
MORE POWER
Over 7,400 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 SAVINGS
MORE SAVINGS
Save Up to $800! It doesn't get any easier than this to upgrade your plane's powerplant!
Progressive Discount: For every five orders placed after the first five, ALL customers will receive an additional $100 discount, increasing to a maximum of $500 off. While we can't predict what the final dollar amount will be, we usually reach at least the $200 bonus level and frequently hit the $500 level. Wherever we wind-up, you get the full discount amount reached whether your are sale #1 or sale #26.
Pick Your Price Discount for Four-Cylinder Tuned Exhaust Systems: For even greater savings on our legacy Power Flow Systems, we offer discounts based on lead time. Earliest current ship by date for most systems is 8/29/25. A discount of $200.00 is available for shipment by September 30, or get $300.00 off for shipment by October 31.
Ship By Dates are subject to change based on production capacity.
MORE MODELS
MORE MODELS
Over 35 aircraft models can now take flight with Power Flow's FAA-approved tuned exhaust systems. Experience the power yourself!
Beechcraft 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
Diamond DA40: I/O-360 powered
Piper PA28 140 with O-320 or O-360 or Piper PA28-150, -260, -180 Below S/N 1761 with O-320 Or O-360
COMING SOON:
Piper PA -12, -18, -20, -22 with O-320, O-360 (excluded from OSH discount)
As you may know, we typically offer a very generous Progressive Discount as our show special at Oshkosh every year. And while we would love to see you at our booth, we understand that not everyone can make the trip, so this deal is open to both virtual and in person customers.
This years show special starts Friday, July 4th, and runs through the close of the show on Sunday, July 27th at 5:00 PM, EDT. Our standard Pick Your Price / Lead time based discounts for our legacy four-cylinder Power Flow Systems will remain in effect throughout this promotion. For most systems, that means a retail discount of $300.00 with a ship by date of October 31st (subject to change based on sales volume and production capacity). With our Show Special, we will increase that discount by $100.00 for every five orders placed during the special event as outlined in the table to the right.
How does that work you ask? It's simple: Each and every certified Power Flow, PMCF, C205-C210 exhaust system ordered with a minimum of six weeks lead time from July 4th through July 27th counts toward the total.
Once you place your order, you can sit back, relax, 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. We hit 11, and everyone saves another $100, and so on. The maximum discount this year is $500 for 26 or more orders.
We will contact every new customer by August 7 with the total discount amount attained, Or - you can join the fun by checking our Oshkosh order scoreboard to see the running total.
Click here to order your kit from our online store.
Be sure to include OSH Discount in the notes to lock in additional additional discounts earned. Additional discounts will be added to your invoice
by August 7, 2025.
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 one week prior to your system’s scheduled ship date. As has always been our policy, your deposit is 100% refundable should your circumstances change.
A few points to keep in mind:
#1.) The Show Special pricing applies to our legacy FAA Certified 4 cylinder Power Flow Tuned Exhaust Systems and our new PMCF / LEES products for the six-cylinder Cessna -180, -182, -185, and 205 through 210 series aircraft only. Introductory priced LEES products for the Piper PA -12, -18, -20, & -22 aircraft are not included in this offer.
#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 4th, or the last one we receive on July 27th. 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, of course, 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? Check out the posted ship dates at the time of your order (deposit required). These will be updating as slots fill up. Need the exhaust sooner than that? We likely can ship sooner than the posted dates with an AOG / Expedite Fee, 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 & 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 $300.00 for most four-cylinder systems), you can just click on the secure, encrypted payment link below to place your order or order on our website.
This link can be used to make payments via either credit card or e-check (subject to a "Hold" of ten business days) by selecting the appropriate options:
https://powerflowsystems.securepayments.cardpointe.com/pay?total=1500.00&invoice=OSH2025
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.
Upon receipt of your deposit we will contact you again to confirm the configuration, ship by date, and applicable discounts for your order.
The following Terms and 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 Power Bucks).
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 4th through July 27th only. Your deposit must be received by July 27th at 1700 (EDT) in order to qualify for this pricing. Final balance must be paid within 30 days of original promised ship date or your order will be subject to cancellation.
Minimum 6-8 week lead time required for OSH Bonus (Full price lead time in effect at the time of your order).
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 promise that no later than August 7, 2025 your invoice will automatically be credited with the additional OSH bonus discount dollar amount and you will be notified of that.
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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