APR Audi B8.5 S4/S5 3.0 TFSI ECU Upgrade
APR is pleased to present the ultimate engine control unit (ECU) upgrade for the 3.0 TFSI V6. 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 8 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 Stage I ECU Upgrade
APR’s ECU upgrades are one of the best horsepower-per-dollar modifications for the 3.0T engine. 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 372 ft-lbs of torque and 444 horsepower with 98 RON octane fuel. Large gains were seen throughout the power band, including an additional 98 ft-lbs of torque and 134 horsepower. Even higher figures were achieved using race fuel. The increase in horsepower and torque directly translates to an exceptionally quicker vehicle.
For those demanding more torque, The APR Supercharger Pulley Upgrade is the answer. Spinning the supercharger faster increases air flow and allows for excellent gains over stage I alone. The gain in torque is felt immediately, but the results are present all the way to redline adding up to 108 ft-lbs and 148 horsepower with 98 RON octane fuel!
Acceleration 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.
Speed 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.
Increased 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.
Motorsport Rev Limiter:
APR’s Motorsport Rev Limiter allows the engine to reach max RPM without the ECU slowing down acceleration several hundred RPM earlier. The result is more power to redline and a definable redline feeling as seen on Audi Quattro GMBH vehicles such as the RS4, RS5 and R8.
Left 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.
- STG I 95 AWHP
- STG I 98 AWHP
- STG I 104 AWHP
- STG I 108 AWHP
- STG I 95 CHP
- STG I 93 CHP
- STG I 104 CHP
- STG I 108 CHP
- STG I 95 Gain
- STG I 98 Gain
- STG I 104 Gain
- STG I 108 Gain
| Stock as Reported by Audi |
Stock as Measured by APR |
95 RON | 98 RON | 104 RON | 108 RON | |
|---|---|---|---|---|---|---|
| - APR recommends and tuned with Sunoco GT 260 for 100 AKI mode and Sunoco GT 260 Plus for 104 AKI 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 VW. | RON = ROW Fuel Grades | AKI = North American (RON+MON)/2 Fuel Grades. | ||||||
| - Reported wheel figures measured using APR's in house Dynapack Dynamometer with a US Spec 2014 B8.5 S4 DSG AWD with APR's DL501 DSG TCU Upgrade, 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. | ||||||
| Speed Limit | Max Speed Limited | Max Speed Limited | Unlimited | Unlimited | Unlimited | Unlimited |
| Peak Horsepower (HP) | 329 HP | 333 HP | 433 HP | 444 HP | 459 HP | 465 HP |
| Peak Torque (FT-LBS) | 325 TQ | 327 TQ | 364 TQ | 372 TQ | 380 TQ | 385 TQ |
| Max Horsepower Increase over Stock | 124 HP @ 7200 RPM | 134 HP @ 7200 RPM | 150 HP @ 7200 RPM | 155 HP @ 7200 RPM | ||
| Max FT-LBS of Torque Increase over Stock | 90 TQ @ 7200 RPM | 98 TQ @ 7200 RPM | 109 TQ @ 7200 RPM | 113 TQ @ 7200 RPM | ||
The APR Development Difference
APR 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 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 |
|---|---|---|---|
| Audi A4 / S4 (B8.5) | All | 3.0 TFSI | All |
| Audi A5 / S5 (B8.5) | All | 3.0 TFSI | All |
| Audi A6 (C7) | All | 3.0 TFSI | All |
| Audi A7 (C7) | All | 3.0 TFSI | All |
| Audi A8 / A8L (D4) | All | 3.0 TFSI | All |
| Audi Q7 | All | 3.0 TFSI | All |
| Stage | Minimum Requirements | 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. | ||||
| APR Stage I ECU Upgrade | None | £662.34 | £794.81 | |
| - Upgrade from APR Stage I to APR Stage II | APR Supercharger Pulley | £290.00 | £348.00 | |
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.
Security, Warranty and Money Back Guarantee
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.
