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Supported Vehicles:

  • USDM 2009-2013 Forester XT AT



Map

Revision:

Version

MapVersion
Stage1
v350
v400
Stage1+
SF v350

  • Stage2 v350

  • Stage2 +SF v350
v400






Map Availability: 

Required Accessport Firmware: 

  • V3: 1.7.3.1-16468 or greater



Each map lists the minimum required octane. A higher octane fuel can be used safely on a map designed for lower octane. DO NOT use maps designed for higher octane with lower octane fuels. Top Tier gasoline should be used where available.

  • Maps designated with "93" are for use with 93 and 94octane fuel or better.
  • Maps designated with "91" are for use with 91 and 92 octane fuel or better.
  • Maps designated with ACN 91 are for use with 91 octane fuel or better fuel found in Arizona, California and Nevada in addition to Canada.

These maps are designed for E10 fuel (fuel with 10% ethanol content). For those who only have access to E0 fuel (fuel with 0% ethanol) it is recommended to use the "91" octane version of the maps and datalog the car to ensure your fuel is performing to the necessary level. This is especially important for those using Canadian 94 octane E0 fuel. 
 

If you are unfamiliar with how to datalog using the Accessport or what to look for, you can find a guide on our website here. 
 

If any knock or detonation is present even when using the appropriate fuel, try reflashing a map that is intended for a lower octane fuel. 










Map

Peak Gains*

Stage1 93+6% HP / +7% TQ over stock
Stage1 +SF 93+9% HP / +12% TQ over stock



*Peak gains are measured as the difference between the highest points of the two plots. 

*Largest gains are measured as the largest gain at any single point between the two plots. 

Results may vary. Power as tested on 2008 - 2013 FXT vehicles using these identical calibrations. Generally speaking, the 91 and ACN91 calibrations run slightly lower boost, have a richer fuel curve, and a less aggressive ignition advance map to help compensate for 91 octane fuel; Arizona, California, and Nevada 91 octane fuel; and/or less than ideal atmospheric conditions. The maps designed for 93 octane are the most aggressive.



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Panel

Map

Peak Gains*

Stage1 93+6% HP / +7% TQ over stockStage1 +SF 93+9% HP / +12% TQ over stockStage2 93+11% HP / +24% TQ over stockStage2 +SF 93+11% HP / +28% TQ over stock
borderColorgold

Stage1 Maps

    • Intake Requirements: Stock airbox and filter
    • Exhaust Requirements: Stock exhaust or
upgraded
    • cat-back
exhaust
    • Exhaust
    • Boost Targets:
      • ACN91: ~13.5psi peak boost pressure tapering down to ~9.5psi by the 6700RPM redline, +/- 1.0 psi
      • 91 Octane 95 RON Minimum: ~14.0psi peak boost pressure tapering down to ~10.0psi by the 6700RPM redline, +/- 1.0 psi
      • 93 Octane 98 RON Minimum: ~14.5psi peak boost pressure tapering down to ~10.5psi by the 6700RPM redline, +/- 1.0 psi


Stage1 +SF Maps

system
upgraded
    • cat-back
exhaust93 Octane 98 RON Minimum: ~16.5psi peak boost pressure tapering down to ~12psi by the 6700RPM redline, +/- 1.0 psi
    • Exhaust
    • ACN91:~14.5psi peak boost pressure tapering down to ~9.5psi by the 6700RPM redline, +/- 1.0 psi
    • 91 Octane 95 RON Minimum: ~14.5psi peak boost pressure tapering down to ~10.0psi by the 6700RPM redline, +/- 1.0 psi
    • 93 Octane 98 RON Minimum: ~15.0psi peak boost pressure tapering down to ~10.5psi by the 6700RPM redline, +/- 1.0 psi

Stage2 Maps

    • Intake Requirements: Stock intake and filter
    • Exhaust Requirements: Upgraded catted turbo-back exhaust
    • ACN91:~15.0psi peak boost pressure tapering down to ~11.0psi by the 6700RPM redline, +/- 1.0 psi
    • 91 Octane 95 RON Minimum: ~15.5psi peak boost pressure tapering down to ~11.5psi by the 6700RPM redline, +/- 1.0 psi
    • 93 Octane 98 RON Minimum: ~16.0psi peak boost pressure tapering down to ~12psi by the 6700RPM redline, +/- 1.0 psi

Stage2 +SF Maps

  • Intake Requirements: COBB SF intake system
  • Exhaust Requirements: Upgraded catted turbo-back exhaust
  • ACN91:~15.5psi peak boost pressure tapering down to ~11.0psi by the 6700RPM redline, +/- 1.0 psi
  • 91 Octane 95 RON Minimum:~16psi peak boost pressure tapering down to ~11.5psi by the 6700RPM redline, +/- 1.0 psi


    • Info
    iconfalse
    titleC.A.R.B Note

    The above Stage1, Stage1+ calibration(s) is legal for use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it and the parts have a California Air Resources Board (CARB) Executive Order (EO) number: 






    Warning

    * The addition of any other hardware may make the vehicle perform poorly.


    ** No other intakes, turbochargers, or fuel injectors are certified as compatible with these maps. **





    Non-Performance Maps

    Anti-Theft Mode

      • Will not allow vehicle to start


    Stage1 Economy Mode

      • Fuel Requirements: 91 octane or better
      • Intake Requirements: Stock airbox and intake
      • Exhaust Requirements: Stock exhaust or upgraded cat-back exhaust
      • Boost Targets: Mechanical minimum (typically around 6psi - 10psi)
      • Rev Limiter: 6700 RPM


    * Not intended for aggressive driving*


    Stage1 +SF Economy Mode

      • Fuel Requirements: 91 octane or better
      • Intake Requirements: COBB Tuning SF Intakeintake system 715300
      • Exhaust Requirements: Stock exhaust or upgraded cat-back exhaust
      • Boost Targets: Mechanical minimum (typically around 6psi - 10psi)
      • Rev Limiter: 6700 RPM


    * Not intended for aggressive driving*

    Stage2 Economy Mode

      • Fuel Requirements: 91 octane or better
      • Intake Requirements: Stock airbox and intake
      • Exhaust Requirements: Upgraded catted turbo-back exhaust
      • Boost Targets: Mechanical minimum (typically around 6psi - 10psi)
      • Rev Limiter: 6700 RPM


    * Not intended for aggressive driving*


    Stage2 +SF Economy Valet Mode

      • Fuel Requirements: 91 octane or better
      • Intake Requirements: COBB Tuning SF intake systemsystem 715300
        • Exhaust Requirements:
        Upgraded catted turbo-back exhaust
      • Boost Targets: Mechanical minimum (typically around 6psi - 10psi)
      • Rev Limiter: 6700 RPM

    * Not intended for aggressive driving*

    Valet Mode

      • Fuel Requirements: 91 octane or better
      • Intake Requirements: Stock airbox or COBB Tuning SF Intake
      • Exhaust Requirements: Stock exhaust or upgraded turbo
        •  
          • Stock or upgraded cat-back exhaust
      • Boost Targets: Mechanical minimum (typically around 6psi - 10psi)
      • Rev Limiter: 3200 RPM




    Monitoring Boost Levels:

    The best way to determine if you are hitting target boost is to watch the TD Boost Error parameter. This parameter is your target boost (including altitude and temperature compensations) minus your actual boost (negative values mean you are over the target by the amount while positive values mean you are under). Ideally you want this value to be between 0 and 1.0 at wide open throttle (WOT), but -1.0 to 1.0 is acceptable assuming that you don’t have any significant knock corrections. Overboosting is more likely to occur in higher gears and with colder outside temperatures, so be sure to verify boost levels during these conditions.



    High Altitude:

    A quick note for those of you that live at higher altitudes. It is common for turbocharged cars at higher altitudes to run less boost pressure due to lower air pressure and air density. Your turbocharger has to work harder to compress a less dense air mass compared to the same turbocharger at sea level. This must be factored in when determining if your turbocharger is running the proper amount of boost pressure and not being pushed beyond its efficiency range. 

    Example: If you live in Denver at 5280 ft and are trying to run a peak boost pressure of 15 psi, your turbocharger has to work the equivalent of making ~17.5 psi at sea level.

    There are barometric compensations within the factory ECU that lower boost targets as you climb in altitude in an effort to keep the turbocharger in its optimal range. The COBB performance maps utilize these compensations and therefore, it is perfectly normal for the final boost target to be lower than what is listed for your map.



    Revision Notes:

    350
    Version #Notes:
    v400Maps updated to eliminate unnecessary DTC Supression or updated versions for parity with other maps/vehicles within the platform
    v350Maps have been updated to eliminate unnecessary DTC suppression.
    310v3102012 Forester XT now supported. Calibrations revised for increased performance and drivability. Support for COBB Tuning SF Intake system added. Includes minor “vehicle usability” improvements such as an increase to the Cruise Control Maximum MPH limit.
    300v300

    2011 Forester XT now supported. Now compatible with Launch Control and Flat-Foot Shifting (LC/FFS) features (MT only). For complete details on how to enable and use the LC/FFS functionality, please visit this FAQ.  These maps have been created with the newly-released AccessTUNER Pro 1.9.0.0. Maps created with this version of AccessTUNER software require the latest AccessPORT firmware (version 1.6.4.0-1189 or greater) be installed. All AccessPORTs must first be updated before using maps created with this latest AccessTUNER version. AccessPORT Manager 2.0 will automatically update the AccessPORT to the latest firmware version and is available for download on the COBB Tuning Support web page.

    102v102All calibrations were updated to provide more consistent boost control functions. Calibrations updated to improve performance of calibrations intended for higher octane fuel (93 octane petrol).
    101v101Original Calibration. Adjusted boost, fuel, ignition, camshaft phasing and base programming logic to improve driving quality and performance. Revised Closed Loop management for improved driving quality. Smoothed out boost related values, improved boost response at lower RPM. Altered intake and exhaust camshaft phasing parameters in an effort to improve low and midrange torque and boost response. Smoothed ignition advance mapping for low to mid RPM response.