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The APR 1.8T/2.0T Intercooler System for MQB Platform Vehicles

SKU: APR-IC100019
$899.99
Details
Details

The APR Intercooler System is a OEM-location upgrade that dramatically reduces intake air temperature (IAT), minimizes heat soak, and provides increased performance! The system is a direct bolt-on upgrade that requires no trimming and is recommended at every stage of performance.

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Quick Facts:

  • Dramatically lowers intake air temp (IAT)
    Increases horsepower while minimizing power-robbing heat soak!
    Effectiveness tested to over 500 HP!
    21 horsepower gain over the factory system!
  • Massive core size
    Use of the OEM-location allows for a massive intercooler core.
    24.25" x 16.25" x 1.25" – 492.5 in³ – OEM GTI
    24.25" x 16.25" x 1.37" – 529.8 in³ – OEM Golf R
    24.00" x 16.25" x 2.25" – 877.5 in³ – APR
  • Intercooler installed in the best location for this platform
    Utilizes factory air dams for exceptional airflow across the core.
    100% compatible with the Adaptive Cruise Control (ACC) system.
  • Highly effective core design
    Bar-and-plate core with staggered and louvered fins.
    Rigorous testing determined core style, fin density, and size.
    Low pressure drop + highly effective cooling = high performance!
  • Smooth cast end tanks
    Engineered for low turbulence/restriction and maximum flow.
    Organically shaped to promote airflow across entire core.
    Pressure tested to prevent power robbing boost leaks.
  • No hidden labor costs or permanent modifications
    No trimming, cutting, or other costly modification required.
    No modification to the Adaptive Cruise Control System required.
    Full directions and APR world-renowned customer support included.
  • Designed by engineers with lasers
    With the best equipment and smartest engineers, it just works!
intercooler

Design

APR pioneered the OEM-location direct-replacement intercooler system in 2006. Unfortunately, to the untrained eye, many intercooler designs appear the same. However, effectiveness of the system and overall performance are greatly determined by several key metrics. Alloy selection, end tank design, construction type, fin style, fin density and overall core dimensions must be analyzed and balanced accordingly to deliver class-leading performance. While the OEM’s goal is to create a lightweight, easy to manufacture and inexpensive to produce, cross-platform design capable of supporting factory power levels, APR’s intercooler must be capable of supporting more than double the factory output. Achieving this goal took a multi-step approach focused around intercooler core selection, end tank design and install location.

Cycle through the tabs below to learn more!

 

Intercooler Core Design

Intercooler Ambient Air Fins Intercooler Charge Air Fins

The APR Intercooler core is a large bar-and-plate design featuring densely packed staggered and louvered fins. This design offers exceptional cooling while balancing pressure loss across the core, and maintaining critical airflow to the components behind the intercooler system. The core size was appropriately matched to the platform, minimizing pressure drop while leaving adequate space for appropriately designed end tanks. To APR’s mechanical engineering experts, the design represented the ultimate in performance, far exceeding the capabilities of the factory intercooler. To the driver, the result is simple: Repeatable performance, even in the most demanding of situations!

Core Style / Internal Fin Structure:

APR’s Engineers paid close attention to the balance between core effectiveness and pressure drop through the core, core style and fin density. With fin density too low, pressure drop decreases dramatically, but typically results in a core incapable of effectively cooling. Likewise, with fin density too great, pressure drop increases dramatically, resulting in the turbocharger working harder, and hotter, to produce the same level of airflow. By fine tuning this often unseen balancing act, as illustrated below, APR’s Engineers were able to maximize performance.

core

Internal Fin Structure

 

Intercooler End Tank Design

To fully utilize the massive core, APR’s mechanical engineers designed cast aluminum end tanks organically shaped for proper airflow distribution across the entire core. By correctly sizing the intercooler core, end tank design was not sacrificed. The one-piece end tanks are CNC machined to provide a slip resistant mounting surface for hoses, precise integrated mounting surfaces, and perfectly flat connecting surfaces used for TIG welding the tanks to the core. Through proper alignment in welding jigs, each unit is assembled to tight tolerances for a precise and accurate fit.

Pressurized Computational Fluid Dynamic (CFD) Analysis:

Intercooler Intercooler

APR’s Engineers determined the proper end tank design, for this application, with the help of pressurized CFD flow analysis via the SimuTech Group, and finally through real world testing. During the analysis, the effect of directional vanes were studied to test their ability to aid in airflow distribution. Analysis concluded there was no perceivable benefit on this application as the vanes only added more weight to the system. Real world testing without directional vanes resulted in a +0.5 °C to -0.5 °C temperature spread from the bottom to the top of the core on the outlet side, throughout the various back-to-back tests, further concluding the design maximized cooling effectiveness of the core.

APR Intercooler APR Intercooler APR Intercooler APR Intercooler

 

 

Intercooler Placement

Intercooler placement plays a critical role in overall performance. By utilizing the factory mounting location, APR’s engineers were able to design a core featuring a massive frontal surface area and large core volume, which plays a critical advantage over common short and stubby front mount designs. Utilization of the factory location means the core receives a high volume of pressurized airflow spread across the entire unit thanks to the highly engineered factory air dam system. Furthermore, by keeping the intercooler in the OEM-location and balancing core fin density, the factory air-to-water cooling system is not disrupted, which is ever so critical on this platform due to the use of an integrated cylinder head manifold cooling system.

install install

The APR intercooler system simply fits, which helps save on hidden labor charges during the time of install. There are no compatibility issues with active cruise control (ACC) systems and the design leaves room for future engine / transmission oil cooling upgrades for track-going customers. The intercooler installs without trimming any air dams, core supports, or more. There’s no drilling, or permanent modifications to the vehicle. Simply follow the included directions and enjoy!

 

Testing

APR Intercooler

Internally APR conducted a multitude of tests while choosing the appropriate intercooler core and end tank design. Thermocouples were placed at the top and bottom of the core to measure cooling effectiveness and cooling distribution across the entire unit. Pressure transducers were placed at the inlet and outlet of the intercooler to determine pressure loss across the various units. With this information, APR’s engineers specified the appropriate intercooler core type, dimensions, cooling fin density and made the necessary design changes to the end tanks to ensure full utilization of the entire core.

The end result was development of a system that’s much more effective at cooling compared to the factory GTI and factory Golf R intercooler system. Effectiveness is measured as (Intercooler Inlet Temp – Intercooler Outlet Temp) / Intercooler Inlet Temp. The APR Intercooler system’s effectiveness under the most demanding situations was between 82-83% while the factory GTI struggled at 60% and the factory Golf R at 65%.

 

MK7 GTI 2.0T Intercooler Testing

chartchart

Back-to-back stress testing on the dyno help to further prove APR’s intercooler upgrade’s effectiveness compared to the factory unit. Tests were first conducted with an APR Stage 2 MK7 GTI using the factory intercooler, then the slightly upgraded Golf R intercooler and finally APR’s Intercooler system. Each dyno pull lasted 12 seconds with 5 seconds of dwell between runs. Raw sensor data was collected using APR’s ECU Explorer high resolution datalogging system.

The tests quickly proved the long sought after OEM “upgraded” cooler (factory Golf R intercooler) showed minimal improvement over the standard GTI unit. However, the APR intercooler saw a dramatic difference that made a positive impact on performance.

The factory GTI and Golf R intercoolers saw a starting IAT of 43 °C and 42 °C which climbed to as high as 71 °C and 66 °C, respectively, by the end of only the first pull. In contrast, the APR intercooler system saw IAT’s drop to 40 °C! The APR system effectively rejected heat soak and by the end of the sixth run saw a final IAT of 49 °C where as both the GTI and Golf R intercoolers struggled to keep up, resulting in a final performance robbing IAT of 84 °C and 82 °C. This translated to a final gain of 21 WHP over the GTI intercooler and 18 WHP over the Golf R Intercooler!

Testing Temperature Data Report
 StartRun 1Run 2Run 3Run 4Run 5Run 6
OEM (GTI) 43 °C 71 °C 76 °C 79 °C 81 °C 83 °C 84 °C
OEM (Golf R) 42 °C 66 °C 74 °C 75 °C 77 °C 79 °C 82 °C
APR 42 °C 40 °C 47 °C 48 °C 48 °C 49 °C 49 °C
Delta (GTI) -1 °C -31 °C -29 °C -31 °C -33 °C -34 °C -35 °C
Delta (Golf R) 0 °C -26 °C -27 °C -27 °C -29 °C -30 °C -33 °C

 

MK7 Golf R 2.0T Intercooler Testing

chartchart

Back-to-back stress testing on the dyno help to further prove APR’s intercooler upgrade’s effectiveness compared to the factory unit. Tests were first conducted with an APR Stage 2 MK7 Golf R using the factory intercooler, then APR’s Intercooler system. Each dyno pull lasted 12 seconds with 5 seconds of dwell between runs. Raw sensor data was collected using APR’s ECU Explorer high resolution datalogging system.

The tests quickly proved the factory Golf R intercooler could not effectively reject heat soak on vehicles equipped with APR’s performance software. However, the APR intercooler saw a dramatic difference that made a positive impact on performance.

The factory intercoolers saw a starting IAT of 26 °C which climbed to as high as 46 °C by the end of only the first pull. In contrast, the APR intercooler system saw IAT’s only raise 1 °C! The APR system effectively rejected heat soak and by the end of the sixth run saw a final IAT of 36 °C where as the factory intercoolers struggled to keep up, resulting in a final performance robbing IAT of 54 °C. This translated to a final gain of 14 WHP over the Golf R intercooler!

Testing Data Report
 StartRun 1Run 2Run 3Run 4Run 5Run 6
OEM 26 °C 46 °C 50 °C 52 °C 52 °C 54 °C 54 °C
APR 29 °C 30 °C 33 °C 35 °C 35 °C 36 °C 36 °C
Delta +3 °C -16 °C -17 °C -17 °C -17 °C -18 °C -18 °C


This product fits the following vehicles:
Make Model Chassis Engine
Audi A3 8V (2015-Present) all
Audi S3 8V (2015-Present) 2.0t TFSI
Audi TT 8S (2016-Present) 2.0t TFSI
Audi TTS 8S (2016-Present) 2.0t TFSI
Volkswagen GTI MK VII (2015-Present) 2.0t TSI
Volkswagen Golf MK VII (2015-Present) all
Volkswagen Golf Alltrack MK VII (2015-Present) 1.8t TSI
Volkswagen Golf R MK VII (2015-Present) 2.0t TSI
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(b) No person shall operate or leave standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device under Part 5 (commencing with Section 43000) of Division 26 of the Health and Safety Code or any other certified motor vehicle pollution control device required by any other state law or any rule or regulation adopted pursuant to that law, or required to be equipped with a motor vehicle pollution control device pursuant to the National Emission Standards Act (42 U.S.C. Secs. 7521 to 7550, inclusive) and the standards and regulations adopted pursuant to that federal act, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition. No person shall disconnect, modify, or alter any such required device.
(c) No person shall install, sell, offer for sale, or advertise any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system.

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(a) Racing vehicles.

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