SKU: 51936286809

IE - FDS Intercooler - Audi B9 S4 S5 A4 A5 ALLROAD

Sale price$465.75 Regular price$517.50
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

IE - FDS Intercooler - Audi B9 S4 S5 A4 A5 ALLROADNotice: Intercooler is not compatible with late model year vehicles that are equipped with active grille shutters. Please verify if your facelift B9. 5 car has this feature before ordering. KEEP YOUR INTAKE AIR COOL The IE FDS front mount intercooler kit (FMIC) increases horsepower and eliminates heat soak. Get the most out of your tuned or big turbo Audi 2017+ B9 A4, S4, S5, A5, or Allroad by installing the IE FDS intercooler system. The intercooler

Notice: Intercooler is not compatible with late-model year vehicles that are equipped with active grille shutters. Please verify if your facelift B9.5 car has this feature before ordering. 

 

KEEP YOUR INTAKE AIR COOL

The IE FDS front-mount intercooler kit (FMIC) increases horsepower and eliminates heat soak. Get the most out of your tuned or big-turbo Audi 2017+ B9 A4, S4, S5, A5, or Allroad by installing the IE FDS intercooler system. The intercooler kit is complete and drop-in. Installation is possible in an afternoon using a standard toolset.

LEADING FEATURES

  • The massive intercooler core is nearly 2 times larger than stock
  • Extensive quality control and pressure testing is completed on all units
  • Intercooler end tanks attach to factory hoses for a perfect fit
  • Increases horsepower and torque by reducing intake air temp
  • FDS technology utilizes the intercooler core more effectively than the competition
  • Water/meth ready with a ⅛ NPT bung cast into inlet end tank
  • High-performance bar and plate core measures 21.25x17.5x2.5"
  • Fully machined inlet and outlet to prevent boost leaks
  • Highly visible with upgraded grille
  • Cast aluminum intercooler end tanks result in superior flow
  • Includes all necessary hardware and hose clamps for installation

FDS (FLOW DISTRIBUTION SYSTEM)

The IE FDS (Flow Distribution System) has proven to distribute charge air uniformly across the inlet end of the core. In contrast to other intercoolers on the market which rely on natural airflow across the core, our FDS technology uses precisely shaped and placed fins cast into the inlet plenum to fully take advantage of the large core volume effectively using the entire core. As a result, the IE FDS intercooler has been proven to reduce IAT (intake air temperatures) more so than competing intercoolers, thus offering the largest power gains possible.

TECHNICAL FEATURES

Increasing horsepower of your B9 is a simple task with several tunes and upgraded turbos available. However, it is important to keep in mind that increasing horsepower will result in heat soak of the stock intercooler and parasitic power loss. The IE front-mount intercooler system was designed to directly replace the factory unit while utilizing a much larger core and our proven FDS (Flow Distribution System) to effectively utilize that larger core. These features allow for much higher cooling efficiency than the factory system, thus reducing intake air temperatures and safely increasing horsepower output. The IE FDS intercooler is also a direct fit, requiring no cutting, modification, or time-wasting hassle during installation. Read below for more in-depth information on each intercooler feature.

ELIMINATE HEAT SOAK

Heat soak occurs when the heat generated exceeds the cooling capacity of the intercooler. The most common symptom is the noticeable loss of power after long term acceleration or several back to back power pulls. By greatly increasing the core size and useable area of the core with FDS technology, we have eliminated the heat soak, keeping the intake air temperatures consistently lower than OEM and competitor intercoolers. (See dyno chart in power charts tab)

PRECISION ENGINEERED

Unlike other intercoolers that are simply put together to fit on the car and offer a larger core, the IE FDS intercooler line receives special treatment from start to finish. Our engineering department uses Computational Fluid Dynamics (CFD) software to optimize the end tanks and FDS system for minimum pressure drop and maximum flow and cooling.

DECREASED PRESSURE DROP

Along with lower intake air temperatures, the large core within the IE intercooler also decreases pressure drop when compared to the factory unit. Simply put, pressure drop is the amount of pressure that is lost as air travels through the intercooler. As airflow boost pressure is raised, pressure drop typically begins to climb. By using a larger core that flows much more freely than the factory core, pressure drop is reduced, decreasing the need for the turbocharger to work harder to produce the required boost levels. This allows the turbocharger to deliver more usable boost pressure to the engine. (See dyno chart in power charts tab)

HIGH-QUALITY CONSTRUCTION, PERFECT FITMENT

Not only does it offer the highest cooling efficiency on the market, the IE FDS intercooler also offers perfect OEM replacement with absolutely minimal modification. It has CNC machined mount points and every IE intercooler allows you to reuse the factory mounting points and installs as if it were a factory piece. You will also find that the IE intercooler receives the same attention to detail and quality as every other IE product, with cast and machined end tanks, precise TIG welding, and a dense bar and plate core. Every intercooler is tested on our in house intercooler testing station before shipping, ensuring that it is ready to install.

COMPLETE KIT

The kit comes complete with one FDS intercooler and all hardware needed for installation.

INSTALLATION

Install for the IE B9 FDS Intercooler will require a standard toolset, a couple of torx bits, and some technical expertise. We recommend reviewing our install guide and install an overview video before attempting the install. Installation Guide can be found HERE.

INSTALL VIDEO

HORSEPOWER & TORQUE RESULTS

The IE Audi B9 FDS Intercooler increases horsepower & torque by decreasing IAT (intake air temperature) and reducing knock. This makes your car much more predictable and consistent because it will not heat soak rapidly like the OE Intercooler.

 

 

PRESSURE DROP RESULTS

Typically upgrading to a larger intercooler core results in added pressure drop, resulting in power loss. IE's FDS design eliminates this problem and works to deliver more boost to the engine by minimizing pressure drop across the intercooler. On the B9 platform, our FDS Intercooler reduces Pressure drop from 1PSI to .3- a drop of approximately 70% at Stage 1 power levels!

INTAKE AIR TEMPERATURE RESULTS

Our unique IE FDS Intercooler design for the Audi B9 platform consistently results in an IAT drop of approximately 20C-30C average at end of open throttle pulls compared to the factory intercooler.

IE FLOW DISTRIBUTION SYSTEM (FDS) FLOW RESULTS

The highly engineered FDS design unique to IE intercoolers uses a carefully shaped fin system located inside the intercooler end tank to force the path of intake air. This ensures charge air utilizes the full intercooler core more effectively than conventional intercoolers resulting is less pressure drop, lower IAT temps, and more power resulting in the most efficient intercooler design on the market.

VEHICLE FITMENT

  • AUDI - S4 2017-2023 (B9/B9.5) 3.0T engine
  • AUDI - S5 2017-2023 (B9/B9.5 3.0T engine
  • AUDI - A6 2018-2023 (C8) 3.0T engine
  • AUDI - A7 2018-2023 (C8) 3.0T engine
  • AUDI - SQ5 2018-2023 (B9/B9.5) engine
  • AUDI - A4 2021-2021 (B9) 2.0T engine
  • AUDI - A5 2017-2021 (B9) 2.0T engine
  • AUDI - A4 Allroad 2017-2021 (B9) 2.0T engine

 

Notice: Intercooler is not compatible with late-model year vehicles that are equipped with active grille shutters. Please verify if your facelift B9.5 car has this feature before ordering. 

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: 51936286809

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Louis
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★★★★★ 5
Great Quality Product
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Great quality and product was easy to assemble. Works perfectly for my sit/stand desk and precisely what I needed to get my desktop off the ground and to have it feel out of the way.
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Reviewed in the United States on May 15, 2026
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Destiney Robertson
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★★★★★ 5
Sturdy mount
Color: Black, Size: Fits Desk Leg: 80mm(D) x 50mm(W)
Great product, very sturdy. no doubt I trust this mount/adapter to hold my 50lb PC. Installation instructions were a little lacking in explaining what to do with the small black rubber pieces. Also, I feel it is very important to ensure the bracket is level before mounting the product - especially if you have a HDD inside your computer. Nothing to knock a star off for.
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R. Doug
Bozeman, US
★★★★★ 5
Fantastic when paired with FLEXISPOT desk!
Color: White, Size: Fits Desk Leg: 80mm(D) x 50mm(W), Color: White, Size: Fits Desk Leg: 80mm(D) x 50mm(W)
I've got this to get my gaming PC off the floor, but keep it off the desk. It delivers. It fit my FLEXISPOT EC1 Electric White Standing Desk perfectly. This PC is 39lbs and there's no sign of it slipping or sagging under the weight as the base is sturdy. The top bracket isn't perfect for this uniquely size case. It installed in <5 minutes start to finish. I used an electric hammer-drill and it cinched up the proviced T-25 screws with ease. For me there's very little that I would change except for the top support bracket arm being slightly different sized.
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Kindle Customer
Fort Morgan, US
★★★★★ 5
It's good
Color: White, Size: Fits Desk Leg: 80mm(D) x 50mm(W)
Pretty good ngl, working well
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Ray kivin
Fort Morgan, US
★★★★★ 4
Great Buy
Instal was easy and it seems good so far. I need to cable manage and everything but other than that it is great. Just wish they put Rubber on more of the metal parts so it doesn’t scratch the pc case.
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Reviewed in the United States on April 26, 2026

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