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The ARM MK8 FMIC features a high-efficiency bar-and-plate intercooler core measuring 27.8 x 9.5 x 2.5 inches, resulting in a total core volume of 660 cubic inches. Compared to the OEM intercooler, which measures approximately 550 cubic inches, the ARM MK8 FMIC offers a 20% increase in core volume. Positioned in the optimal front-mount location, this increased capacity allows for improved heat rejection and consistent charge-air cooling, with efficiency supporting builds up to 700 horsepower. To further optimize airflow and fitment, the intercooler utilizes high-flowing cast aluminum end tanks with oval-shaped inlet and outlet ports cast directly into the end tanks. This oval design is engineered to maximize airflow while providing critical clearance between the intercooler piping and the vehicle’s frame, ensuring proper routing without compromising flow efficiency or fitment. The oval middle sections of the ARM MK8 FMIC inlet and outlet tubing are designed to retain the same overall cross-sectional areaas the 2.5" round inlet and outlet of 4.9". 
The ARM MK8 FMIC utilizes 2.5" intercooler piping at the inlet and outlet to connect directly to the factory charge pipes. This diameter is carefully selected to balance airflow capacity and charge air velocity, ensuring efficient boost response without introducing unnecessary volume that can slow turbo spool. By retaining a 2.5" connection size, the ARM MK8 FMIC maintains compatibility with OEM charge pipes and most aftermarket charge pipe upgrades, while supporting increased airflow demands from tuned and higher-boost setups.
The MK8 FMIC mounting brackets are designed to incorporate a dedicated ambient temperature sensor bracket, allowing the factory ambient air temperature sensor to be relocated and mounted correctly after FMIC installation. This ensures the sensor remains positioned in a proper airflow location, providing accurate ambient temperature readings to the ECU and vehicle systems. Proper sensor placement helps maintain correct engine management behavior and ensures temperature-based calculations remain reliable after the intercooler upgrade.
Included in the ARM MK8 FMIC Kit are silicone caps designed to block off the inlet and outlet of the OEM intercooler. These caps prevent dirt, debris, moisture, and foreign objects from entering the factory intercooler while it is not in use.
The ARM MK8 GTI FMIC is one of the easiest intercooler upgrades to install for the MK8 GTI. Like every intercooler upgrade for the MK8 platform, it does require the removal of your front bumper, but unlike stock-location intercooler upgrades it does not require any disassembling of the crash bar, radiator stack, or draining of the coolant. The ARM MK8 FMIC comes with MK8-specific mounting brackets to secure the FMIC without the need to cut or drill brackets into the crash bar. The full installation of the ARM MK8 FMIC only takes about 2-3 hours, even for the novice mechanic. 
If you're running or plan on running an upgraded turbo on your MK8, you will want to opt for the ARM MK8 Bi-Cooler Hose Upgrade. The ARM MK8 Bi-Cooler Hose Upgrade allows you to utilize a stock location intercooler (OEM or upgraded) in conjunction with the ARM MK8 FMIC giving your MK8 improved cooling efficiency over the ARM MK8 FMIC alone. This is only recommended if you already have a turbo upgrade or plan on installing one in the near future as it can cause a slight pressure drop on the OEM turbo. 
NOTE: DOES NOT FIT VEHICLES WITH ADAPTIVE CRUISE CONTROL (ACC) MOUNTED IN THE LOWER BUMPER. WILL FIT VEHICLES WITH ACC MOUNTED INTO VW EMBLEM.
| Make | Model | Submodel | Engine |
|---|---|---|---|
| Volkswagen | Golf VIII GTI | Hatchback | 2.0T Gen4 |
| Volkswagen | Golf VIII R | Hatchback | 2.0T Gen4 |
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All products sold by Eurosport Performance are warrantied against manufacturing defects according to the manufacturer's warranty policy*. Warranty does not cover abuse, misuse, damages caused from improper manipulation, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective, the customer will receive, at the discretion of Eurosport Performance, a replacement part at no extra cost.
* Conditions may apply. Please visit our Refund Policy or contact us at info@es-performance.com
