APR 1.8 TSI Gen3 ECU Upgrade

engineAPR is pleased to present the ultimate engine control unit (ECU) upgrade for the 1.8 TSI EA888 Gen 3 engine. APR’s ECU upgrade is available in octane-specific variations and is conveniently flashed to the vehicle’s factory ECU through the OBD-II port without any physical modification to the factory ECU.

The ECU’s Simos 12 / 18 engine management system is responsible for proper operation of the engine during constantly changing environmental and load conditions. With built in compensational data for environmental variables and varying load conditions, the factory ECU is far more complex and intelligent than units found in other vehicle makes and marques.

APR's Calibration Engineers spent months calibrating the engine management system, including many hours of chassis dyno development. With a thorough understanding of the ECU’s torque structure, APR’s Calibration Engineers properly increased engine load to produce more power and torque across the entire power band. APR’s ECU Upgrade increases boost pressure, optimizes ignition timing, cam timing, lambda and more to produce higher output!

APR’s ECU Upgrades provides an excellent leap in horsepower and torque while retaining OEM knock control sensitivity and other built in safety features. This results in an exciting and powerful upgrade, optimized for various fuel grades found around the world

APR ECU Upgrades


The APR Stage I ECU Upgrade is designed to work without requiring other changes to the vehicle’s hardware. With the ECU Upgrade alone, APR’s Calibration Experts measured higher peak figures of 293 ft-lbs of torque and 242 horsepower with 93 AKI octane fuel. Large gains were seen throughout the power band, including an additional 99 ft-lbs of torque and 68 horsepower. The increase in power directly translates to an exceptionally quicker vehicle. Using advanced GPS measuring devices, APR’s engineers conducted several acceleration tests. During the 100-200 KPH sprint, the APR Stage I equipped vehicle crossed the finish line 9.845 seconds quicker, resulting in an outstanding 35% improvement!

The APR Stage II ECU Upgrade is designed to work with APR’s Exhaust Race DP and producted peak power and torque figures of 250 horsepower and 315 ft-lbs of torque. The additional hardware allowed the turbo to spool faster and power carried better towards redline, resulting in up to an additional 54 ft-lbs of torque and 16 horsepower over Stage I.

rabbitAcceleration Enhancements:
Beyond horsepower and torque enhancements, APR’s Calibration Engineers were able to increase the acceleration rate of the vehicle through other calibrations changes. Ignition delay is reduced resulting in a more responsive pedal without altering overall throttle sensitivity. Furthermore, throttle lag commonly noticed at slow speeds and while reapplying throttle has been reduced.

ecoIncreased Fuel Economy:
APR’s Calibration Engineers paid close attention to several parameters directly related to fuel economy, especially while cruising at highway speeds. Depending on driving style and fuel quality, better miles per gallon may be achieved.

vmaxSpeed Limiter:
APR’s ECU upgrade increases the vehicle's top speed limiter for blistering sprints around the track or across the Autobahn without the speed limiter shutting down the fun.

Left Foot BrakingLeft Foot Braking:
APR's Left Foot Braking feature allows more control over the vehicle’s throttle. The factory equipped vehicle's throttle input is disabled while pressing the accelerator and brake at the same time. Left Foot Braking, a common motorsport driving technique, allows the driver complete control over the vehicle’s throttle and braking system, which may give the vehicle the edge it needs at the track.

APR Stage I ECU Upgrade Calibration Report
  Stock - 87 AKI
As Reported by VW
Stock - 93 AKI
As Measured by APR
APR Stage I
87 AKI or 91 RON
APR Stage I
91 AKI or 95 RON
APR Stage I
93 AKI or 98 RON
APR Stage II
91 AKI or 95 RON
APR Stage II
93 AKI or 98 RON
- Never use lower octane than specified by the mode.
- Max increases are based on APR's actual measured stock values and not those reported by VW. | RON = ROW Fuel Grades | AKI = North American (RON+MON)/2 Fuel Grades.
- Reported wheel figures measured on APR's in house Dynapack Dynamometer with a 2014 Passat Tiptronic, using SAEJ1349 correction and an average of multiple runs. Stage II was with the addition of APR's Cast Race DP. Crank figures estimated based on the measured wheel figures. Results will vary depending upon environmental conditions, vehicle, transmission, vehicle health, operating conditions, temperatures, fuel grade, dyno type, dyno setup, and other modifications.
Speed Limit Max Speed
Max Speed
Unlimited Unlimited Unlimited Unlimited Unlimited
Peak Horsepower (HP) 170 HP 191 HP 223 HP 238 HP 242 HP 244 HP 250 HP
Peak Torque (FT-LBS) 184 TQ 203 TQ 267 TQ 283 TQ 293 TQ 303 TQ 315 TQ
Max Horsepower
Increase over Stock*
    +47 HP @ 3,650 RPM +60 HP @ 3,900 RPM +68 HP @ 3,900 RPM +70 HP @ 3,600 RPM +78 HP @ 3,650 RPM
Max FT-LBS of Torque
Increase over Stock*
    +73 TQ @ 3,100 RPM +89 TQ @ 3,250 RPM +99 TQ @ 3,250 RPM +109 TQ @ 3,150 RPM +121 TQ @ 3,150 RPM

Acceleration Tests

APR Acceleration
APR Acceleration Tests
Program Mode 0-60 MPH 0-62 MPH 0-100 KPH 0-100 MPH 60-120 MPH 62-124 MPH 100-200 KPH 60-130 MPH 30-130 MPH
- Data collected at the same location with a 2014 Jetta 5 speed manual via a Racelogic P-Box with ESP/ASR enabled. May not be comparable to data collected in other locations.
93 AKI Octane
7.445 7.983 8.011 18.575 24.001 27.314 28.130 Speed limited Speed Limited
APR Stage I
93 AKI Octane
6.789 7.280 7.311 14.942 16.507 18.180 18.294 22.158 25.554
Stock vs APR 93
(Seconds Faster)
0.657 0.702 0.700 3.633 7.494 9.134 9.845 - -
Stock vs APR 93
(Percent Faster)
8.82% 8.80% 8.74% 19.56% 31.22% 33.44% 34.99% - -

The APR Development Difference

DirectPort ProgrammingAPR DirectPort Programming:
APR’s DirectPort Programming is now available! Any APR Dealer in the world, connected to the Internet, has direct access to APR’s latest ECU upgrades for loading directly over the vehicle's OBD-II port. This completely eliminates the need to remove and open the ECU for currently available files and can be uninstalled at any time!

APR ECU ExplorerAPR ECU Explorer:
APR’s proprietary ECU Explorer gives APR’s Calibration Engineers unparalleled access to the vehicle’s entire engine management system. Typical commercially available data logging tools, used by most tuners, only allow logging up to 12 engine-operating variables at extremely low data rates. These tools are also limited to a small, specific list of variables. APR’s ECU Explorer is capable of logging every variable found within the ECU with far more variables logged at once, at very high data rates.

APR ECU ComposerAPR ECU Composer:
APR’s proprietary ECU Composer is used for altering the engine management system. With full access to every table, map and variable within the ECU, APR’s Calibration Engineers are not limited to a handful of maps as is common for most tuning companies.

APR ECU AssemblyAPR ECU Assembly:
APR’s Electrical Engineers have the ability to alter the code structure of the ECU. Through code levels changes, APR's Engineers are able to add features to the ECU. Other changes allow higher torque limits than those achievable through only modifying calibration data or using piggyback devices as is the case for many tuners. This allows APR's engineers to often not require transmission software to meet or exceed advertised gains. On the highly modified end, this often allows APR to make turbo upgrades operate without the need for external manual controllers.

Application Guide
Vehicle Market Engine Transmission
Volkswagen Jetta (MKVI) All 1.8 TSI EA888 Gen 3 with Simos 12 and 18 ECU Manual & Tiptronic
Volkswagen Beetle (MKII) All 1.8 TSI EA888 Gen 3 with Simos 12 and 18 ECU Manual & Tiptronic
Volkswagen Passat (B7) All 1.8 TSI EA888 Gen 3 with Simos 12 and 18 ECU Manual & Tiptronic
Stage Minimum Requirements Price
- Pricing: Please contact an APR Importer for pricing outside the USA.
- Availability and ECU Compatibility: Stages, programs, and features may not be available for all ECUs.
- ECU Revision Notice: Multiple ECU revisions exist for each platform. APR software may be temporarily unavailable when factory updates are applied. An APR dealer can check availability in person, or over the phone if the ECU boxcode/revision is known.
- Stage II Pricing: Customers who have purchased an APR ECU Upgrade before February 16th, 2015 are exempt from upgrade fees.
APR Stage I ECU Upgrade None $599.99
- Upgrade from APR Stage I to APR Stage II High Flow Exhaust Race DP $149.99
- Upgrade from APR Stage I to APR Stage II (after purchasing an APR Race DP) APR Exhaust Race DP No Additional Charge

How to purchase

APR DealerPlease use the APR Dealer Locater Tool to locate an APR Dealer, confirm availability and schedule an appointment.

Please note vehicle manufacturers issue many ECU part numbers and revisions throughout their vehicle lineup. As such, some ECUs may be temporarily unavailable as new parts and/or revisions are released. If the vehicle’s ECU part number and revision is known, availability can be checked at any APR Dealer.

Security, Warranty and Money Back Guarantee

guarantee30 Day Money Back Guarantee:
All APR ECU Upgrades include a 30-day money back guarantee with no questions asked. If for any reason the owners is dissatisfied with the APR ECU Upgrade, they may return to the place of purchase for a full refund, provided they are within the 30 day period from the time of the initial purchase. Labor or shipping charges are not included in the guarantee and are at the discretion of the place of install.

guaranteeLimited Lifetime Warranty:
All APR ECU Upgrades include a limited lifetime warranty against defects in the software, and to provide free updates and reflashes as they become available. Labor or shipping charges are not included in the warranty and are at the discretion of the place of install.

APR Tuned

Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: (334) 502-5180 Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

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Notice: Products that affect emissions and do not carry a California Air Resources Board Executive Order are not for sale in California, USA. While we try to keep everything current, APR LLC is not responsible for errors in pricing on this web site. All prices are in USD and are applicable to the United States of America only.