FA20 / FA24 Oil Cooler Sandwich Plate Adapter

From $198.80

To $337.90

Part #
ENV-117 Kit

Free shipping on USA orders over $99

  • Easily configure an oil cooler sandwich plate for the FA20 and FA24 engines
  • Includes an oil filter spacer designed for recessed filters
  • Filter spacer features 2 x 1/8" NPT sensor ports
  • Made in the USA
  • Lifetime Warranty

Improved Racing Warranty Badge

Part # ENV-117 Kit
Customize FA20 / FA24 Oil Cooler Sandwich Plate Adapter
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FA20 / FA24 Oil Filter Adapter Kit
FA20 / FA24 Oil Cooler Sandwich Plate Adapter

In stock

Free shipping on USA orders over $99



    This configurator allows you to customize an oil cooler adapter solution for the FA20 (also known as Toyota 4U-GSE) and FA24 found on several Subaru and Toyota vehicles.

    Improved Racing's filter spacer plate allows our sandwich plates to clear the lip around the recessed filter found on these engines. The spacer also features two 1/8" NPT ports so that sensors can be added if desired.

    Step 1

    • The ENV-139 is a simple sandwich plate with no oil thermostat. This unit should be used primarily in track-only cars.
    • The ENV-131 (-10AN ports) and ENV-132 (-8AN ports) sandwich plates feature an oil thermostat to prevent overcooling of your engine oil on the street and to ensure quick warmup times.
    • We recommend using -10AN ports and -10AN oil lines to minimize restriction.
    • We recommend choosing the 180°F or 200°F thermostat for street cars, and the 212°F thermostat for track cars that run high viscosity engine oil.

    Step 2

    • Select the ENV-117 oil filter spacer. This is required for the sandwich plate or filter takeoff to work with the FA20 / FA24 engine's recessed filter flange.

    Step 3

    • The required filter thread extension bungs are sold separately and are selected in the remaining steps. The FA20 / FA24 engines use a M20x1.5 filter thread, so only this thread size is shown. Two extension bungs are required: one for the sandwich plate, and one for the spacer. These are high quality bung screws machined from hardened 410 stainless steel.


    • Subaru FA20 and FA24 engines found in vehicles including:
      • Scion FR-S / Toyota 86 / GT86, all model years
      • Subaru BRZ, all model years
      • Toyota GR86, all model years
      • 2012-2014 Subaru Legacy 2.0GT DIT
      • 2014-2018 Subaru Forester XT
      • 2015-2021 Subaru WRX
      • 2019+ Subaru Ascent
      • 2020+ Subaru Legacy XT
      • 2020+ Subaru Outback XT
      • 2022+ Subaru WRX
      • 2022+ Subaru Levorg / WRX Sportswagon / WRX GT
    • Application note:
      • If deleting the factory water to oil cooler found in later model years, you will need to install the factory filter screw bung, Subaru Part # 15018AA090.

    Filter Spacer Dimensions

    ENV-117 Dimensions

    Maximum Sensor Probe Length

    Part #


    (Max Sensor Probe Length)


    Thread Size

    ENV-117 0.44 in (11.2 mm) 1/8" NPT
    Part #
    ENV-117 Kit
    Improved Racing
    Primary Material
    6061-T6 aluminum
    Type II Anodized
    Minimum Operating Temperature
    -40°F (-40°C)
    Maximum Operating Temperature
    302°F (150°C)
    Maximum Operating Pressure
    300 psi (20.68 bar)
    Max Recommended Flow Rate
    Up to 20 GPM (76 LPM)
    Fluid Compatibility
    Air and gas
    Engine oil
    Ethanol-based fuels (E85+)
    Ethanol/gasoline mixtures
    Gear oil
    Nitrous Oxide
    Racing fuels
    Transmission fluid
    Sensor / Accessory Port 1
    1/8" NPT
    Sensor / Accessory Port 2
    1/8" NPT
    Oil Filter Flange Inner Diameter
    2.00" (50.8mm)
    Oil Filter Flange Outer Diameter
    3.00" (76.2mm)
    Filter O-Ring Inner Diameter
    2.484" (63.10mm)
    Filter O-Ring Outer Diameter
    2.762" (70.15mm)
    Filter O-Ring Material
    Viton® (FKM)
    Instruction Manuals
    Oil Filter Spacer for Recessed Filters, with Sensor Ports
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