Customer Support CenterMap Notes for VA WRX (USDM)

Map Notes for VA WRX (USDM)

Owned by Brandyn Mowat
Last updated: Jul 21, 2023

Supported Vehicles:

  • Model year 2015-2021 WRX 6MT, CVT USDM Vehicles

*To confirm your model year, you can refer to the tenth value in the VIN number on the vehicle. For model year 2001-2009, the 10th value in the VIN will be the last digit of the model year. For model year 2010-2019, the 10th value in the VIN will be A-K, starting with 2010, ending with 2019.


Current Map Revision:

North American 2015-2021 WRX 6MT
North American 2015-2021 WRX CVT
    • Stage1 v400
    • Stage1+SF v400
    • Stage1+BigSF v400
    • Stage1+Redline v400
    • NexGen Stage2+Redline v401
    • NexGen Stage2+SF v401
    • Stage1 v400
    • Stage1+SF v400
    • Stage1+BigSF v400
    • Stage1+Redline v400
    • NexGen Stage2+Redline v401
    • NexGen Stage2+SF v401


Accessport Firmware: 

  • AP3-SUB-004: 1.7.4.2-22738







Fuel Requirements:

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 94 octane/98 RON fuel or better.
  • Maps designated with "91" are for use with 91 and 92 octane/95 RON fuel or better. (Recommended for vehicles in Canada running 94 octane or higher)


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" and "ACN91" octane versions 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. 









Stage 1




As Tested on COBB Dynojet Dyno


HP IncreaseTq Increase
Max % Gain Over Stock At Any Point98%98%
Peak Power Gain (Highest Output Point)14%13%


Stage1

  • Intake Requirements: Stock airbox and stock air filter

  • Exhaust Requirements: Stock

  • Boost Targets:

    • 91 Octane 95 RON Minimum: ~19.0psi peak boost pressure tapering down as you approach the 6900RPM redline, +/- 1.5psi.

    • 93 Octane 98 RON Minimum: ~19.0psi peak boost pressure tapering down as you approach the 6900RPM redline, +/- 1.5psi.


Stage1+BigSF

  • Intake Requirements: COBB Tuning BigSF Intake and Airbox System 745110 

  • Exhaust Requirements: Stock

  • Boost Targets

    • 91 Octane 95 RON Minimum: ~19.0psi peak boost pressure tapering down as you approach the 6900RPM redline, +/- 1.5psi.

    • 93 Octane 98 RON Minimum: ~19.0psi peak boost pressure tapering down as you approach the 6900RPM redline, +/- 1.5psi.



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

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

Results may vary. Power as tested using these identical calibrations. Generally speaking, the 91 octane calibration has a richer fuel curve and a less aggressive ignition advance map to help compensate for 91 octane fuel and/or less than ideal atmospheric conditions. The map designed for 93 octane is the most aggressive. 








Stage1+ Redline, Stage1+SF









HP IncreaseTq Increase
Max % Gain Over Stock At Any Point
 +84% @ 6220 RPM

169.14 stock, 253.75 tuned

 +50% @6220

143.01 stock, 214.76 tuned

Peak Power Gain (Highest Output Point)
 +17.6%

Stock peak HP 223.76@5230
Tuned peak HP 263.21@3640

 +11.18%

Stock peak TQ 256.24@4110
Tuned peak TQ 284.89@3640

*Power gains advertised ignore the dips due to stability control and where OEM Tune falls off above 6400 RPM

Stage1+Redline, Stage1+SF

  • Intake Requirements: COBB Tuning Redline Carbon Fiber Intake, COBB Tuning SF Intake

  • Exhaust Requirements: Stock

  • Boost Targets

    • 91 Octane 95 RON Minimum: ~19.0psi peak boost pressure tapering down as you approach the 6900RPM redline, +/- 1.5psi.

    • 93 Octane 98 RON Minimum: ~19.0psi peak boost pressure tapering down as you approach the 6900RPM redline, +/- 1.5psi.



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

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

Results may vary. Power as tested using these identical calibrations. Generally speaking, the 91 octane calibration has a richer fuel curve and a less aggressive ignition advance map to help compensate for 91 octane fuel and/or less than ideal atmospheric conditions. The map designed for 93 octane is the most aggressive. 





NexGen Stage2+ (Big SF, SF, Redline Intake)







NexGen Stage2+ 93HP IncreaseTQ Increase
Max % Gain Over Stock At Any Point
 +24.94% @ 6460 RPM

234.02 vs 187.3

 +25% @6460

190.65 vs 152.52

Peak Power Gain (Highest Output Point)
 +9.9%

Stock peak HP 239.03 @ 3330
Tuned peak HP 262.79 @ 5760

 +13.6%

Stock peak TQ 266.33@3490
Tuned peak TQ 302.66@3330

Average

Stock 181.1

Tuned 206.2

Stock 226.3

Tuned 257.7

NexGen Stage2+Big SF

  • Intake Requirements:

    • COBB BIG SF Intake & Airbox - 745110

  • Turbo Inlet

    • COBB Charge Pipe - 742110

  • Boost Control

    • COBB EBCS - 714750

  • Intercooler

    • COBB Top Mount Intercooler - B42405

  • Bypass Valve

  • Exhaust Requirements:

    • COBB Stainless Cat-Back Exhaust (Optional) - 515132
      or

    • COBB Titanium Cat-Back Exhaust (Optional) -515140

  • Downpipe

    • Stock Catted Downpipe

  • Boost Targets

    • MT

      • 91 OCT or 95 RON: 18psi peak tapering down to 13psi by redline +/- 1.5psi

      • 93 OCT or 98 RON: 19psi peak tapering down to 13psi by redline +/- 1.5psi

    • CVT
      • 91 OCT or 95 RON: 19.0 psi peak, tapering to 12.0 psi, +/- 1.5 psi.
      • 93 OCT or 98 RON: 19.0 psi peak, tapering to 12.0 psi, +/- 1.5 psi.

  • All other intake, exhaust, and engine components must be stock

NexGen Stage2+SF

  • Intake Requirements:

    • COB SF Intake & Airbox - 745120

  • Turbo Inlet

    • COBB Charge Pipe - 742110

  • Boost Control

    • COBB EBCS - 714750

  • Intercooler

    • COBB Top Mount Intercooler - B42405

  • Bypass Valve

  • Exhaust Requirements:

    • COBB Stainless Cat-Back Exhaust (Optional) - 515132
      or

    • COBB Titanium Cat-Back Exhaust (Optional) -515140

  • Downpipe

    • Stock Catted Downpipe

  • Boost Targets

    • MT

      • 91 OCT or 95 RON: 18psi peak tapering down to 13psi by redline +/- 1.5psi

      • 93 OCT or 98 RON: 19psi peak tapering down to 13psi by redline +/- 1.5psi

    • CVT
      • 91 OCT or 95 RON: 19.0 psi peak, tapering to 12.0 psi, +/- 1.5 psi.
      • 93 OCT or 98 RON: 19.0 psi peak, tapering to 12.0 psi, +/- 1.5 psi.

  • All other intake, exhaust, and engine components must be stock

NexGen Stage2+ Redline

  • Intake Requirements:

    • COBB Redline Carbon Fiber Intake System - 742100

  • Turbo Inlet

    • COBB Charge Pipe - 742110

  • Boost Control

    • COBB EBCS - 714750

  • Intercooler

    • COBB Top Mount Intercooler - B42405

  • Bypass Valve

  • Exhaust Requirements:

    • COBB Stainless Cat-Back Exhaust (Optional) - 515132
      or

    • COBB Titanium Cat-Back Exhaust (Optional) -515140

  • Downpipe

    • Stock Catted Downpipe

  • Boost Targets

    • MT

      • 91 OCT or 95 RON: 18psi peak tapering down to 13psi by redline +/- 1.5psi

      • 93 OCT or 98 RON: 19psi peak tapering down to 13psi by redline +/- 1.5psi

    • CVT
      • 91 OCT or 95 RON: 19.0 psi peak, tapering to 12.0 psi, +/- 1.5 psi.
      • 93 OCT or 98 RON: 19.0 psi peak, tapering to 12.0 psi, +/- 1.5 psi.

  • All other intake, exhaust, and engine components must be stock


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

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

Results may vary. Power as tested using these identical calibrations. Generally speaking, the 91 octane calibration has a richer fuel curve and a less aggressive ignition advance map to help compensate for 91 octane fuel and/or less than ideal atmospheric conditions. The map designed for 93 octane is the most aggressive. 






Non-Performance Maps

Anti-Theft Mode

  • Will not allow the vehicle to start


Stage1 Economy

  • Fuel Requirements: 91 octane or better

  • Intake Requirements: Stock airbox and stock air filter

  • Exhaust Requirements: Stock exhaust

  • Boost Targets: Mechanical minimum

  • Rev Limiter: 5500RPM

*Not intended for aggressive driving*


Stage1 Valet

  • Fuel Requirements:91 octane or better
  • Intake Requirements: Stock airbox and stock air filter
  • Exhaust Requirements: Stock exhaust
  • Boost Targets: Mechanical minimum
  • Rev Limiter: 4000 RPM


Stage1+BigSF Economy

*Not intended for aggressive driving*


Stage1+BigSF Valet

Stage1+Redline Economy

*Not intended for aggressive driving*


Stage1+Redline Valet




NexGen Stage2+BigSF

  • Fuel Requirements:91 octane or better

  • Intake Requirements:

    • COBB BIG SF Intake & Airbox - 745110

  • Turbo Inlet

    • COBB Charge Pipe - 742110

  • Boost Control

    • COBB EBCS - 714750

  • Intercooler

    • COBB Top Mount Intercooler - B42405

  • Exhaust Requirements: Stock exhaust or Catbak

  • Boost Targets: Mechanical minimum

  • Rev Limiter: 5500RPM

*Not intended for aggressive driving*


NexGen Stage2+BigSF

  • Fuel Requirements:91 octane or better

  • Intake Requirements:

    • COBB BIG SF Intake & Airbox - 745110

  • Turbo Inlet

    • COBB Charge Pipe - 742110

  • Boost Control

    • COBB EBCS - 714750

  • Intercooler

    • COBB Top Mount Intercooler - B42405

  • Exhaust Requirements: Stock exhaust or Catbak

  • Boost Targets: Mechanical minimum
  • Rev Limiter: 4000 RPM

NexGen Stage2+Redline Economy

  • Fuel Requirements:91 octane or better

  • Intake Requirements:

    • COBB Redline Carbon Fiber Intake System - 742100

  • Turbo Inlet

    • COBB Charge Pipe - 742110

  • Boost Control

    • COBB EBCS - 714750

  • Intercooler

    • COBB Top Mount Intercooler - B42405

  • Exhaust Requirements: Stock exhaust or Catbak

  • Boost Targets: Mechanical minimum

  • Rev Limiter: 5500RPM

*Not intended for aggressive driving*


NexGen Stage2+Redline Valet

  • Fuel Requirements:91 octane or better

  • Intake Requirements:

    • COBB Redline Carbon Fiber Intake System - 742100

  • Turbo Inlet

    • COBB Charge Pipe - 742110

  • Boost Control

    • COBB EBCS - 714750

  • Intercooler

    • COBB Top Mount Intercooler - B42405

  • Exhaust Requirements: Stock exhaust or Catbak

  • Boost Targets: Mechanical minimum
  • Rev Limiter: 4000 RPM





MT Revision Notes: 

Revision:Notes:
v401Stage2+ NexGen release
v400This map was updated to eliminate unnecessary DTC Supression or update versions for parity with other maps/vehicles within the platform
v361 Adjusted fuel based protection system that operates at low DAM. No impact on normal operation.
v360All VA WRX calibrations updated with new CCF2 ROM family and improvements noted in v350 (previously only for 2020 WRX), plus the following:
  • Normal, LWG, and HWG calibration options for all stages
  • Incorporated OEM Battery life improvements to applicable models (15-17)
v351

Improved high load driveability.

v350

Maps have been updated to eliminate unnecessary DTC suppression.

2020 WRX OTS utilized new CCF2 ROM family for improved driveability.  Some of the changes include:

  • Improved closed-loop fueling and learning, improved airflow calculation and fuel targets.
  • Improved charge temperature based boost target and control, and ignition compensation.
  • Per gear timing and boost control, improved knock learning.
  • "Soft" boost limit (via throttle), smoothed boost control input, reduced boost reduction at low air temperatures.
  • Improved Anti-theft map (no start), improved Valet map (more restrictions i.e. 70 MPH speed limit)
  • Additional groundwork to help Protuners 
v303

  • 2018 ADM WRX: Fixed bug where the "Intake Temperature Pre-Turbo" monitor could sometimes show a value of -58F for a brief period of time after engine start. ECU did not use the erroneous value so this is a monitor issue only.

  • Added 2019 ADM WRX support.

v302

2017 USDM WRX CVT/MT: Fixed an issue where real-time tuning and real-time map switching was disabled for the "MAF Calibration" table which caused the ECU to always use the reflashed values only for this table. 

  • Note: Please REFLASH a v302 map to address this.

v301

  • Fixed bugs associated with v300 maps preventing real-time and launch control feature changes from working.

  • Addressed issue causing check engine light from being thrown for Stage2 maps

v300

Supports the latest Subaru ECU revision. Merged Subaru calibration for the latest injector timing changes.

v201

  • Fixed bug causing Realtime map switching to not work.

  • Added 2016 USDM WRX 6MT support.

  • Added COBB BigSF Intake support.

v200

  • Realtime tuning/map change feature added to v200 and later OTS maps (also requires latest Accessport firmware update to expose real-time map change function).

  • Launch control (AP and cruise control adjustable) feature added to v200 and later OTS maps (also requires latest Accessport firmware update to expose launch RPM adjustment menu).

  • Flat foot shifting (AP adjustable) feature added to v200 and later OTS maps (also requires the latest Accessport firmware update to expose flat-foot shift RPM adjustment menu).

  • Merged Subaru calibration update for injector timing and other changes.

  • Includes Subaru pre-ignition updates.

v115

  • Renamed Stage1+TBE maps to Stage2

  • Revised IAT vs. WGDC compensation to reduce underboosting between 32 F / 0 C and -40 F / -40 C

  • Disabled Global A/F Learning #1 adjustment

  • Slight revision to reduce DAM adjustment sensitivity at low loads

  • Corrected issue with OL Enrichment vs. DAM fueling adjustment table

v114

Addresses an infrequent brief interruption of torque/power delivery introduced in the v113 maps.

v113

  • Adds support for newest factory ECU/ROM update

  • Reduced "rev hang" behavior when changing gears

  • Optimized higher load ignition timing

  • Revised how IAT vs. Ignition Timing compensations are applied at low load and RPM

  • Changed long-term fuel trim behaviors at higher load values

  • Improved AVCS and Requested Torque settings to improve power past 6000 RPM

  • Revised Boost Target and WGDC vs. Baro. Comps to increase boost at high elevations

  • Altered Per-Gear Ignition Timing compensations for 4/5/6th gears at high RPM for better resistance to detonation

  • Slightly richer target AFR at high load and RPM

v109

  • Revised low load/RPM timing to reduce knock corrections

  • Smoothed Boost vs. IAT compensations for more predictable boost targeting

  • Reduced Boost Target at higher RPM to raise knock threshold

  • Adjusted Boost Target and WGDC Compensations for high elevations to address underboosting

  • Added "High Waste Gate" secondary option mapping for cars experiencing persistent underboosting conditions

  • Revised throttle mapping to increase sensitivity at partial accelerator pedal positions based on feedback from Airboy and others

  • Richer target AFR at high load for increased detonation resistance

v105

  • Revised ignition timing, primary fueling, camshaft timing, closed / open loop transition thresholds and boost levels for performance and safety.

  • Optimized throttle mapping for improved take-off and more linear response across accelerator pedal range.

  • Factory fueling and timing strategies streamlined for ease-of-calibration and consistency following a key-off and restart sequence.

  • Per-Gear Timing Compensations revised for safety and enabled for 6th gear (OEM logic only allows for compensating gears 1-5).

v100Initial Release

CVT Revision Notes:

Version
Notes
v401

Stage+ NexGen release

v400This map was updated to eliminate unnecessary DTC Supression or update versions for parity with other maps/vehicles within the platform
v361Adjusted fuel based protection system that operates at low DAM. No impact on normal operation.
v360Updated all CVT WRX vehicles to CCF2 ROM Family maps.  Among those changes.
  • Improved closed-loop fueling and learning
  • IAT boost target compensation.
v350
  • 2020 USDM WRX CVT initial support release

  • Utilized new CCF2 ROM family for improved driveability.  Among those changes.

    • Improved closed-loop fueling and learning
    • IAT boost target compensation.
v302

2017 USDM WRX CVT/MT: Fixed an issue where real-time tuning and real-time map switching was disabled for the "MAF Calibration" table which caused the ECU to always use the reflashed values only for this table. 

  • Note: Please REFLASH a v302 map to address this.
v301Fixed bugs associated with v300 maps preventing real-time and launch control feature changes from working.
v300

Supports latest Subaru ECU revision.

v201
  • Fixed bug causing Realtime map switching to not work.
  • Added 2016 USDM WRX CVT support.
  • Added COBB BigSF Intake support.
v200
  • Realtime tuning now available.
  • Merged Subaru calibration update for injector timing and other changes.
v117

Corrected issue where Launch Mode was not able to be activated on certain Stage1 v116 maps.

v116
  • Original mapping for 2015 WRX CVT. 
  • Revised ignition timing, primary fueling, camshaft timing, closed / open loop transition thresholds and boost levels for performance and safety.
  • Factory fueling and timing strategies streamlined for ease-of-calibration and consistency following a key-off and restart sequence.
  • Set speed limiters to maximum allowed value
  • Per-Gear Timing Compensations revised for safety and enabled for 6th - 8th gear in S# Mode (OEM logic only allows for compensating gears 1-5). 
  • Launch Mode feature added to all performance maps.
  • Includes Subaru pre-ignition update changes.

Copyright 2023 © COBB Tuning Products LLC. All Rights Reserved. | www.cobbtuning.com