JSCspeed.com | Contact JSC Subscribe to our RSS feed for special deals! Subscribe to our feed for Special Deals!
AEM Plug & Play EMS for Subaru 02-05 WRX & 04-06 STi
aem ems for wrx
AEM Engine Management for WRX
AEM's Plug & Play Engine Management System (EMS) is the first system of its kind and will forever change the way you look at and apply custom fuel injection tuning for your WRX or STi! This end-user programmable system plugs directly into your Subaru factory ECU harness and requires no additional wiring or hardware. The included Microsoft Widows based software (compatible with XP, 2000, NT, 98, 95, ME) makes the task of copying, viewing and manipulating data as simple as a click of the mouse. Custom defined parameter templates are easily configurable and enable tuners to establish "quick keys" to any necessary information during the tuning process.
The AEM EMS is designed with infinitely adjustable software allowing tuners to program virtually any combination of engine control, performance upgrades and auxiliary devices, and accurately deliver proper amounts of fuel and correct ignition timing for ANY boost level or operating condition.
AEM EMS Standard Features:

  • PLUG & PLAY: Installs in minutes in place of the factory computer using all the factory connections.
  • START-UP CALIBRATIONS INCLUDED: An application specific base map is pre-loaded onto the AEM EMS to get you up and running in mere minutes.
  • FACTORY SENSOR COMPATIBLE: Designed to use all factory sensor or compatible with multiple sensor add-ons for more more tuning versitility.
  • FUEL AUTOMAPPING: You can tune your engine in literally minutes! All you need is an accurate Air/Fuel ratio input and the ECU does the rest.
  • PROGRAMMABLE TRACTION CONTROL: Custom program allowable acceleration rates by gear and RPM to slash those 60ft times!
  • ONBOARD 512k DATALOGGER: Never datalog with a laptop on your passenger seat again. The AEM EMS has internal memory to log over 400 parameters at up to 250 samples per second. Logging can be triggered via dash switch, RPM, speed, load, or throttle position.
  • SEQUENTIAL FUEL INJECTION: Up to 10 sequential fuel injector drivers controlled via a 357 point load/RPM table.
  • 7 DEFINABLE SWITCH INPUTS: Control up to 7 switched inputs such as A/C, nitrous, 2-step launch control or flat foot shifting.
  • ELECTRONIC BOOST CONTROL: Integrated EBC can control the stock or an after market boost solenoid in open-loop (MBC) style or through a 357 point boost target table.
  • DEFINABLE KNOCK CONTROL: Custom program your factory or add-on knock sensor to add fuel or advance/retard timing depending on set knock threshhold that you define.
  • FULL IDLE CONTROL: Custom tune your engine idle with features like a programmable hi-idle, and the ability to adjust timing and fuel trims according to idle speed.
  • 4 EGT INPUTS WITH FUEL CONTROL: Control up to 4 RTD type EGT sensors for data logging.
  • 16/32 BIT HYBRID PROCESSOR: Advanced MOTOROLA hybrid high-speed processor ensures that the AEM EMS will always be one step ahead even under the most demanding operating conditions.
Shipping costs calculated upon checkout
NOTE: EMS kits differ depending on model and year. Please choose the correct kit for your car below.
FITMENT: 2002-2005 WRX (manual transmission only) & 2004-2006 STi
Vehicle Part #: MSRP: Price: Inventory

02-05 WRX EMS
without wideband
manual trans. only
   30-1810   
$1,873.61
$1,349.00
Usually ships next day

02-05 WRX EMS
with wideband
manual trans. only
   30-1810U   
$2,220.84
$1,599.00
Usually ships next day

2004 STi EMS    30-1820   
$2,275.00
$1,638.00
Usually ships next day

05-06 STi EMS    30-1821   
$2,275.00
$1,638.00
Usually ships next day

3.5-Bar
MAP Sensor Kit
   30-2130-50   
$204.19
$147.02
3 in stock

5-Bar
MAP Sensor Kit
   30-2130-75   
$204.19
$147.02
3 in stock

Inlet Air Temp
Sensor Kit
   30-2010   
$72.19
$51.98
3 in stock

EGT Sensor Kit    30-2050   
$204.94
$147.56
3 in stock

AEM Boost Control Solenoid    30-2400   
$126.25
$90.90
5 in stock

AEM Coolant Temp. Sensor Kit    30-2011   
$48.36
$34.82
Usually ships next day
Recommended Parts to go With Your AEM EMS
Invidia 02-07 WRX & STi 3in. Catless & High Flow Cat DownpipesInvidia 02-07 WRX & STi 3in. Catless & High Flow Cat Downpipes AEM 02-07 WRX & STi Short Ram IntakeAEM 02-07 WRX & STi Short Ram Intake
jsc speed performance parts
Search By Part #:
Keyword Search:
Search By Brand
JSCspeed.com : FAQ Section | Contact Us | Careers at JSC | Events and Media | Copyright 2007 JSC Speed Inc. Terms of Use and Privacy Policy and Safety Information.
All rights reserved.