SKU: 46562542982

iE Air-To-Air FDS Intercooler System For Audi B9 RS5/RS4

Sale price$1218.12 Regular price$1353.47
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Description

iE Air-To-Air FDS Intercooler System For Audi B9 RS5/RS4The iE Air To Air Intercooler System for your Audi RS5 2. 9TT has been obsessively optimized in every dimension to maximize flow, efficiency, and volume. With a staggering 997. 36% increase in volume compared to stock, it offers unmatched cooling capabilities. Our cutting edge FDS (Flow Distribution System) technology ensures even charge air distribution across the expansive core, further enhancing efficiency by reducing intake air temperatures and

The iE Air-To-Air Intercooler System for your Audi RS5 2.9TT has been obsessively optimized in every dimension to maximize flow, efficiency, and volume. With a staggering 997.36% increase in volume compared to stock, it offers unmatched cooling capabilities. Our cutting-edge FDS (Flow Distribution System) technology ensures even charge air distribution across the expansive core, further enhancing efficiency by reducing intake air temperatures and minimizing pressure drop. Defeat heat soak for good and experience the full potential of your twin-turbo RS5.


LEADING FEATURES

  • Air-To-Air Design -Higher capacity design for extreme cooling
  • iE proprietary FDS -Directs airflow evenly across the core
  • Market leading size - 997.36% more volume than stock
  • Easy power gain -Efficient upgrade for any power level
  • Defeat heat soak -More power from your upgrades for longer

DESIGN DETAILS

STRONG, REINFORCED, RELIABLE

iE VS. STOCK

Your factory 2.9TT water-cooled intercooler relies on a severely undersized core volume of only 1,870cm³ and shared engine coolant to regulate air intake temperatures. Even in completely stock form, spirited and normal driving leads to significant rises in air temperatures, resulting in power reduction. The cooling benefits of water are not enough to compensate for the tiny intercooler size, coupled with the increased water weight and heat demands on the radiator.

The iE intercooler adopts a traditional air-to-air design, divorcing the core from engine coolant. This strategic shift substantially increases core volume to 18,500cm³ (10X larger!), providing an extensive surface area for efficient heat dissipation. This separation delivers unmatched cooling for even the most serious builds, less water weight, and allows the factory radiator to focus on keeping the drivetrain cool.

iE FDS TECHNOLOGY

What's the use of a large intercooler core if it can't efficiently harness the increased volume and surface area of the core? IE's Flow Distribution System (FDS) places precisely shaped fins inside the end tank to ensure uniform airflow across the core surface area evenly. This advanced design element enhances heat distribution and enables quicker recovery. When it comes to significantly reducing intake air temperatures (IAT) for maximal power gains, IE's FDS technology stands as the proven cheat code.

PERFECT FIT

Despite its impressive size, this intercooler has been meticulously designed for a precise fit. iE engineers utilize state-of-the-art 3D scanning equipment and rapid prototyping techniques, guaranteeing a snug yet perfect installation.

WORRY-FREE STRENGTH

The provided thick-gauge stainless steel and aluminum mount brackets with our reinforced casting mounts are meticulously engineered to ensure longevity and worry-free operation. Every mounting boss and surface undergoes precision CNC machining and meticulous hand verification to guarantee an exact fit. Despite its substantial size, the intercooler seamlessly retains the factory crash bar, prioritizing safety without compromising performance.

PREMIUM MANUFACTURING

To ensure maximum quality, meticulous attention to detail, and outstanding craftsmanship, each intercooler undergoes precise hand TIG welding by skilled intercooler specialists. Following welding, every unit undergoes rigorous post-welding multi-point critical inspections and thorough testing in a leak-down station. This stringent manufacturing process guarantees a reliable product ready to install and performs flawlessly right out of the box.




PERFORMANCE DATA

PROOF IS IN THE TESTING

DEFEAT HEAT SOAK

Heat soak occurs when the Intake Air Temperature (IAT) generated by the turbos exceed the cooling capacity of the intercooler and passes hot air to the engine. When air temperatures rise, the engine programming responds by pulling timing and boost back to safe levels to accomodate. The result is a noticeable loss of power during acceleration and long pulls. The iE Intercooler dramatically increases the core size and effecient use of the surface area with FDS technology to significantly reduced intake air temperatures consistently lower than OEM, keeping your RS5 at it's maximum peak output.

AVERAGE IAT GAIN

This graph illustrates the Intake Air Temperature (IAT) gain comparison between the factory intercooler and the iE air-to-air design. Each line represents the average of six consecutive 12-second pulls in a single gear on a Stage 1 RS5. The results are exceptional and demonstrate consistently lower and stable IATs with the iE intercooler across every pull.

It's worth noting that this testing was conducted on a hub dyno. Real-world conditions, with the vehicle in motion and airflow passing through the intercooler, are expected to yield even more impressive cooling results.

POWER GAINS

Power testing reveals consistent impacts on horsepower and torque. The graph provided details the power gained over the stock intercooler in back-to-back testing under identical conditions. By effectively lowering Intake Air Temperatures (IATs), controlling pressure drop, and maximizing flow, the iE intercooler delivers significant power improvements across the entire RPM range, boasting gains of 36HP and 35ft-lbs of torque!

While some power enhancements can be attributed to denser and cooler charge air, the majority of gains stem from reduced timing and boost pull resulting from lower intake temperatures, further validating the exceptional efficiency of the air-to-air design.



INSTALLATION

The market-leading performance of iE's air-to-air FDS intercooler can be directly attributed to it's massive size and design. No space was left unused and the installation is involved, requiring draining coolant, and some minor plastic trimming. While not required, an auto-lift is recommended.

Average install time around 2-4 hours

VEHICLE FITMENT GUIDE

MAKE MODEL YEAR ENGINE

AUDI

RS5

2018+ (B9)

2.9TT

 

Note: -Fitment is confirmed for North American RS5 only. Not compatible with front crash beam found on all Rest Of World (ROW) RS5/RS4 models.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 46562542982

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Desertmouse
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★★★★★ 5
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Reviewed in the United States on May 11, 2026
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Port Orchard, US
★★★★★ 5
So Far So Good
I adopted a young adult dog less than 2 weeks ago. She had spent over 12 hours a day in a crate and has excessive energy and anxiety built up. She is a strong chewer. So far, out of 6 toys, this is the only one still in one piece. It appears sturdy and extra bouncy. So much better than regular tennis balls.
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Lisa B
Belleville, US
★★★★★ 5
My dogs favorite!
My dogs love these! They will play all day if you'd let them, these balls are their favorites. I use the chuck-it handle and they get tons of exercise in the big yard!
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Reviewed in the United States on April 22, 2026
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Theredirishman
West Palm Beach, US
★★★★★ 5
The Dog LOVES IT!
I bought this for my ex-wife's Pitbull. He is an aggressive chewer and usually destroys any toy I buy him. But not this one! The ball is small enough and pliable that it gives when he chomps on it. He loves this ball and seems to be his favorite toy. Thank you for making a product that he likes and can't destroy!
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Reviewed in the United States on December 30, 2024
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Sean
Waukegan, US
★★★★★ 5
My Golden Retriever’s favorite
We’ve owned lots of toys and balls. This specific version (in blue) has been her absolute favorite. She’s about 72lbs and chews on this thing regularly with no visible damage. We actually own about 6 of them because they have a tendency to go missing underneath furniture and in the yard. We have two of the orange colored ones but she doesn’t like those nearly as much which I assume is because the blue is easier to see in the grass. Other than that…They bounce really well and also whistle a little when you throw them hard enough. I hope they never stop making these.
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Reviewed in the United States on October 6, 2024

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