APR ECU UPGRADES FOR THE PORSCHE 911 TURBO 3.8T (991.2)
We're excited to announce our Engine Control Unit (ECU) Upgrades are now available for the Porsche 911 (991.2) Turbo 3.8T engine with the Continental SDI 21 ECU! Expect massive gains with up to 612-754 HP and 623-701 FT-LBS of torque on tap, depending on octane and stage!
Our new suite of software comes after months of extensive research and development that is typically absent from the aftermarket. Our upgrade makes the engine more powerful and more exciting. We’ve extensively calibrated the system to work flawlessly on the track, while retaining safety routines to protect your engine in the most demanding scenarios. This was all made possible by our engineering team's pursuit of perfection. Development vehicles were outfitted with additional sensors, including turbo shaft speed sensors, thermocouples, transducers, and more, along with our high speed direct RAM logging equipment, to feed valuable data to the team for analysis. After thousands of hours of testing and tuning we created new calibrations that are fine tuned for several octanes and contain hundreds of map changes, with a vast array of safety features built in.
Features
- Delivers up to 612-688 HP with 623-679 FT-LBS of torque (APR Stage 1)
- Delivers up to 654-754 HP with 627-701 FT-LBS of torque (APR Stage 3)
- Max gains of +98 AWHP with +107 AWFT-LBS of torque (APR Plus)
- Max gains of +98-165 AWHP with +107-165 AWFT-LBS of torque (APR Stage 1)
- Max gains of +122-213 AWHP with +121-188 AWFT-LBS of torque (APR Stage 3)
- Ethanol and race fuel support for maximum power on the race track
- Multiple stages of performance offered
- Switchable power levels through Porsche’s Normal, Sport, and Sport+ profiles
- Linear throttle mapping
- Standing RPM soft limiter increased
- Left-foot braking / brake boosting added
- Optimized thermal management with various engine safety protection routines added
- Auto Start/Stop defaults to the off position
- Enhanced power delivery and drivability through recalibrated exhaust flap actuation
- Speed limiter removed
- No hardware required for APR Plus or Stage 1 (Software only)
- Supports standard bolt on modifications
- Supports Turbo S Turbochargers (Stage 3)
- Free lifetime updates
- Direct OBDII port flash (No ECU removal)
- 30 day money back guarantee
| Stage | Fuel grade | Max HP | Max TQ | Max HP Gain Over Stock | Max TQ Gain Over Stock | |
|---|---|---|---|---|---|---|
| - APR recommends and tuned with Sunoco GT 260 for 104 RON mode and Sunoco GT 260 Plus for 108 RON mode. 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 VAG. | ||||||
| - Reported wheel figures measured on APR's in house Dynamometer using SAEJ1349 correction and an average of multiple runs. Crank figures are estimated based on the measured wheel figures. Results may vary depending upon environmental conditions, vehicle, transmission, vehicle health, operating conditions, temperatures, fuel grade, dyno type, dyno setup, other variables and other modifications. On the dyno, this platform will see large swings in power based on intake air temperature, and the gear in which it's dynoed. | ||||||
| Stock As Reported by Porsche | 95 RON | 540 HP | 523 FT-LBS | |||
| Stock As Measured by APR | 98 RON | 552 HP | 541 FT-LBS | |||
| APR Stage 1 (SPORT/SPORT+) | 95 RON | 612 HP | 623 FT-LBS | +98 HP | +107 FT-LBS | |
| APR Stage 1 (SPORT/SPORT+) | 98 RON | 637 HP | 671 FT-LBS | +135 HP | +148 FT-LBS | |
| APR Stage 1 (SPORT/SPORT+) | 104 RON | 655HP | 671 FT-LBS | +138 HP | +148 FT-LBS | |
| APR Stage 1 (SPORT/SPORT+) | 108 RON | 661 HP | 672 FT-LBS | +142 HP | +165 FT-LBS | |
| APR Stage 3 W/ TURBO S Turbos (SPORT/SPORT+) | 95 RON | 654 HP | 627FT-LBS | +122 HP | +121 FT-LBS | |
| APR Stage 3 W/ TURBO S Turbos (SPORT/SPORT+) | 98 RON | 685 HP | 665 FT-LBS | +151 HP | +149 FT-LBS | |
| APR Stage 3 W/ TURBO S Turbos (SPORT/SPORT+) | 104 RON | 709 HP | 669 FT-LBS | +172 HP | +166 FT-LBS | |
| APR Stage 3 W/ TURBO S Turbos (SPORT/SPORT+) | 108 RON | 715 HP | 674 FT-LBS | +178 HP | +171 FT-LBS | |
APR Stage 1 is available for 95 RON, 98 RON, 104 RON, and 108 RON.
APR Stage 3 is available for 95 RON, 98 RON, 104 RON, and 108 RON.
The APR difference
Who we are
We’re a global automotive engineering firm nestled in Opelika, Alabama. Our 80,000ft² state-of-the-art facility is home to some of the best engineers in the industry, who have mastered hundreds of engine management systems. We have multiple engine and chassis dynos, and the resources necessary to create our ECU Upgrades in-house, from the ground up! We're not a new company either. We've been around since the 90's and we have a strong financial backing to ensure we'll be here to support you for decades to come!
What we do
We optimize everything to make your engine more powerful. We adjust air-fuel ratios, advance ignition, increase boost pressure, alter cam positions and lift profiles, and more, all depending on the type of engine and management system, of course! We don’t take shortcuts, and we don’t take risks. We do it the right way.
How we differ
With our proprietary calibration and direct ram access data logging tools and operating system code changes, we’re able to make some of the strongest and fastest ECU upgrades, without needing costly end user adjustments. We work with the ECUs intelligent modeling and closed-loop systems, and beta test in multiple environments to create upgrades that work no matter where you drive!
The APR Difference
APR Direct Port 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 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 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 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.
| Vehicle | Market | Engine | Transmission |
|---|---|---|---|
| Porsche 911 (991.2) Turbo | All | 3.8T | All |
| Product | Price Exc. VAT | Price Inc. VAT | |
|---|---|---|---|
| IMPORTANT PRICING AND AVAILABILITY DETAILS: | |||
| - 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 1 ECU Upgrade | £2207.94 | £2649.53 | |
How to Purchase
Please 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.
30 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.
Limited 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.
