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:
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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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4.5 ★★★★★
Based on 271 reviews
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Tyi Campbell
Birmingham, US
★★★★★ 5
Great product and worth the money.
Size: 4 Panel-88'', Color: Black
Portable and stable. Perfect size and gives me the privacy I need when working from home. Stability is great as long as you place the stands correctly it won't wobble. I love it.
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Reviewed in the United States on May 8, 2026
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Verified Purchase
Mona T.
Alexandria, US
★★★★★ 5
Attractive
Size: 4 Panel-88'', Color: Grey
The assembled product is just as described. The screens look great! I am using them to hide the cluttered shelving in my garage. The area now looks quite neat Something I must say, though, is that the assembly was extremely difficult. I had to use a silicone spray and some pounding to get the A and B poles to fit together. Also, it required a great deal of strength to stretch and hold the fabric panels so that the bars inserted in each hem lines up with the screws inserted in A/B poles. I strongly recommend having a partner to help with the assembly. while sc and screw into poles them once inserted intetchedtne end of each pole ( and B poles barely fit together. I used silicone spray on the end and then pounded them
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Reviewed in the United States on December 12, 2025
K
Verified Purchase
karine
Dallas, US
★★★★★ 5
Works
Size: 3 Panel-102'', Color: Beige, Size: 3 Panel-102'', Color: Beige
It’s beige and not white. Once install - hard to disinstall. Need a drill to put it together
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Reviewed in the United States on May 4, 2026
R
Verified Purchase
ralversity
Natrona Heights, US
★★★★★ 3
Does the job, but assembling by yourself is a nightmare
Size: 4 Panel-88'', Color: Black
Does it do the job? Yes, although as others said there are small gaps but it's not a huge deal. The price is also good. But the reason I'm giving it a 3/5 is simply because the assembly for this was a complete nightmare. I honestly don't think I would recommend this to anyone unless they have another person to help them assemble it, because doing it by myself was terrible. I don't think I'd buy this again, I think I'd opt to just spend a bit more money and save myself the trouble personally.
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Reviewed in the United States on May 29, 2026
T
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Talagand
Boise, US
★★★★★ 4
Reasonably adequate room divider
Size: 4 Panel-88'', Color: Beige
I'm reviewing this as I assemble it. Couple things: 1. I didn't expect as much assembly. I've ordered dividers before and they more-or-less came as one unit. Sometimes the panels needed screwing together. These require complete assembly and come largely as three rods: two make up vertical columns and snap together. Another one (called part "C") makes the horizontal columns and you have two of these per panel (one attaches to part "A" and the other part "B"). These parts are metal with a plastic shim. Using the wood screws to attach to part "C" is a real pain in the neck. There's not much holding the panel in place so it's a little tricky. One tactic I've found while I'm assembling that works for the initial connections from parts A and B to their respective "C" rods is to hold the screw in place with a screw driver and then rotating the rod around the screw. This will do a number on your hands if you aren't wearing gloves. This obviously doesn't work when completing the connection. Using a driller driver on this is really near impossible because there isn't anything you can use to secure it in place. You can use it on the first panel, but as it gets longer, it becomes increasingly difficult and because it isn't wood, it's really tight. I considered drilling larger pilot holes but since there are only 4x4=16 screws I need to screw in, I just decided to use my screw driver to complete it. 2. Also related to assembly. When completing the panels (attaching parts "A" and "B" to parts "C" that have the cloth cover on it), you have to be careful that when you tighten that side that it isn't loosening the other side. Because the pilot holes are so tight, you can end up rotating the rod, which rotates it in the same direction as looser on the original side. Having someone hold the "C" rod in place while you screw it in is probably the easiest approach. I didn't have a 2nd person, so I just had to keep flipping back and forth and tightening both sides as I screwed it in. Not the worlds biggest deal, but annoying nonetheless. 3. The way the instructions are written, they seem to suggest building this thing progressively; that is, you do panel 1, then 2, connect them together, then do 3 and connect it, etc. I took a different route that I suspect saved me quite a bit of trouble, and I assembled all four panels first and THEN connected everything together. 4. For the love of God make sure you check that the plastic tip is on the same side for every panel. Otherwise, you have to take one side apart again and reverse it. On the bright side, if this happens, you've essentially bored out the pilot holes to be the correct size... which is having me question if I shouldn't have just bored them out to the appropriate width in the first place. 5. Attaching all of the panels together is also an enormous pain in the ass unless you happen to have an 88" long elevated surface. Attaching the legs either requires you to elevate one side, which will invariably twist the inexplicably cheap material in the bottom connectors... or you can attach them sideways... or you can put this thing upright, having two people hold the panels in place while you use the allen wrench to tighten the bolts on the underside. None of those are particularly great options. NOW on to the utility itself. 1. The panels do let some light through (I didn't believe their advertising, and that was one of the reasons that I bought beige, is that I wanted it to not be too dark). They aren't transparent though, so it isn't that far off from their description. They functionally work great, and keep the mess of wires hidden and when I'm sitting at my desk, actually reflect quite a bit of light into my office. Great! 2. My wife has described these as "the most hideous piece of furniture ever conceived of by man." So it does not have spouse approval factor. Granted, she will seldom be in my office area, so that isn't the end of the world. 3. These are really hard to align in a way that doesn't look a little tacky. There are some plastic connectors but they don't do a bang up job of keeping these in place. Each panel is slightly tilted and it's... quite obvious. I may at some point make my own improvements to these to help make them more level. It's not a particularly expensive product so I wasn't expecting much so it's fine and I'm not going to ding them on the rating because of it. All said, would I buy this product again? Probably not. It's assembly was ~90 minutes which is about 75 minutes longer than I was anticipating spending on this (not including the 5 minute writeup that I'm doing here). But am I going to return it? Also no, if for no other reason I'd be just as annoyed taking it apart and putting it in the original box to return it.
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Reviewed in the United States on October 31, 2023

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