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  • F25 X3 FMIC Upgrade

    Features:
    -Gain up to 22whp/29wtq
    -94% Increase In Cooling Performance
    -120% Larger Frontal Area Than OEM
    -50min Installation
     

    An ARM F25 X3 Intercooler upgrade is one of the best modifications you can make to your 28i or 35i X3. One of the F25 X3'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 X3 to perform better. In order to keep those IAT's low, a larger and more effective intercooler is needed.

     

    ARM F25 X3 FMIC

    The ARM F25 X3 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 FMIC is 235cu.in. or 36% larger than the stock N55 intercooler which comes in at only 425cu in. In addition, the ARM F25 X3 FMIC utilizes an ultra-dense 14 fins per inch external core, giving it the best cooling performance possible.

     

    FRONTAL AREA

    With a 220sq.in. face the ARM F25 X3 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. This is shown in our IAT testing results below.

    IAT 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.

      $337.00 Regular Price
      $330.00Sale Price

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