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PROFILE

The ARM Motorsports F25/F26 X3/X4 FMIC is a Direct-Fit Front Mount Intercooler solution for your BMW X3/X4 xDrive 28i and xDrive 35i!  One of the F25/F26 X3/X4's most significant weak-points is its stock intercooler.  This becomes obvious when tuning the N20/N55 to increase boost with a Stage 1 tune and even more so with a Stage 2+ tune.  With a higher boost target the charged air coming out of the compressor is hotter, therefore increasing IAT's.  To compensate for the higher IAT's the ECU (DME) reduces boost, timing, and overall power to the engine.  This is the exact opposite of what you want for getting your F25/F26 X3/X4 to perform better.  In order to keep those IAT's low, a larger and more effective intercooler is needed. 

CONSTRUCTION

The ARM F25/F26 X3/X4 FMIC is the perfect cooling solution for any stock turbo or upgraded turbo N20/N55 setup.  With an intercooler core size of 20x11x3" and an overall volume of 660cu in. the ARM F25/F26 FMIC is 235cu.in. or 36% larger than the stock N55 intercooler which comes in at only 425cu in.  In addition, the ARM F25/F26 X3/X4 FMIC utilizes an ultra-dense 14 fins per inch external core, giving it the best cooling performance possible.  

With a 220sq.in. face the ARM F25/F26 X3/X4 FMIC has a 120% larger frontal area than the OEM intercooler with only a 100sq.in. face, and 55sq.in. or 33% larger than most aftermarket intercoolers for the F-Series platform.  Having a larger frontal area equates to more effective cooling compared to intercoolers of similar total volume.  In the milliseconds that the ambient air passes through the intercooler it warms up, making the actual cooling less effective towards the rear of the intercooler.  Taking the area towards the rear of the intercooler and bringing it towards the front improves the overall ability of the FMIC to cool the charged air on the X3/X4.  This is shown in our IAT testing results below. 

INTAKE AIR TEMPERATURE RESULTS

Our baseline run was performed on a 335i running 16psi of boost with the stock F-Series intercooler.   The 3rd gear run started at 93 degrees and ended at 126 degrees, a huge increase of 33 degrees Fahrenheit on 16psi of boost, and certainly restricting the amount of power this N55 could have been making.

After installing the ARM F-Series FMIC there was a massive improvement in cooling performance that resulted in only a 2 degrees Fahrenheit increase in IAT. In this 3rd gear run with boost peaking at 18psi, which is 2psi higher than the stock intercooler run, it starting at 95 degrees and ended at only 97 degrees. This is a 94% improvement in cooling over the OEM F30 intercooler!  

INSTALLATION

Installation of the ARM F25/F26 X3/X4 FMIC upgrade is a basic bolt-on procedure similar to the F30 FMIC installation, but with the addition of trimming one small piece of plastic measuring 1x3", or about the size of a stick of gum.  It does not require you to remove the front bumper.  It is a direct fit which bolts up into the original stock intercooler location.  The CNC connectors will connect to either the stock F30 intercooler piping or to any upgraded intercooler piping that fits the stock intercooler.  

IN THE BOX

FITMENT GUIDE

The items installed or applied to vehicles are intended strictly foroff-road use onlyandtrack vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use underEnvironmental Regulatory Agency (ERA)laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

If you're unsure whether a part will fit your vehicle, feel free tocontact us herewith your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.

We offer a flat-rate shipping fee across thecontinental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.

Also, feel free to also contact us at ColoradoN5X@Gmail.Com for any other questions.

Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.