POWER GAINS
North American Region (NAR) = AKI / Rest Of World (ROW) = RON
STAGE / FUEL | HORSEPOWER | TORQUE |
Stock Audi advertised numbers (RS6/RS7) |
591 HP |
590 FT-LBS |
Stock IE dyno numbers (RS6/RS7) |
591 HP |
616 FT-LBS |
Stage 1 91 AKI / 95 RON |
668 HP |
768 FT-LBS |
Stage 1 93 AKI / 98 RON |
690 HP |
780 FT-LBS |
Stage 1 104 AKI / 108 RON |
800 HP |
821 FT-LBS |
Stage 1 E85 |
800 HP |
745 FT-LBS |
Stage 1 E40 |
828 HP |
862 FT-LBS |
Dyno numbers are for reference against stock numbers only. Personal & competitor dyno results will vary depending on fuel quality, local conditions, dyno brand, and correction factors.
IE’s 4.0TT ECU tune for the Audi C8 platform is a total transformation delivering supercar performance and maximized power delivery. With our cutting-edge modern motorsport tuning approach, your twin-turbocharged V8 engine’s potential is fully realized while maintaining total comfort and reliability. Release the hidden power and heighten your driving experience with a simple install that takes only minutes.
PUMP GAS & ETHANOL
POWER OPTIONS
MULTIPLE OCTANES
SUPERCAR POWER
828HP / 862TQ
IN ONLY MINUTES
EASY INSTALL
FLASH AT HOME
PLUG AND PLAY
LEADING FEATURES

- Horsepower & torque gains maximized
- 91, 93, 104, E40, & E85 fuel maps included
- Compatible with all stock hardware
- Get the most performance with upgraded intake and intercooler
- Stage 1 Transmission Tune included with ECU purchase
- User-adjustable launch control included with trans tune
- Harder and more aggressive launch strategy
- Brake boost enabled for rolling launch
- Recalibrated factory boost gauge displays higher boost
- Rescaled horsepower and torque gauge displays
- Gauge display needle animations smoothed (less glitchy)
- Unused ECU tuning strategies activated and tuned
- Neutral/park rev limit raised
- Enhanced exhaust overrun crackle in sport mode
- Maximized map scaling for dependable throttle use
- Boost control reconfigured for smooth and crisp power delivery
- Optimized EGT for safe fuel ratios and maximized power output
- Reduced turbocharger lag
- Road speed limiters removed
- Engineered for all climates and elevations
- Direct port OBDII at-home flashing
- Easy octane switching takes only minutes
- Read and clear diagnostic/problem codes
- Easy to use Data-logger
C8 4.0T STAGE 1 ECU TUNE
IE Stage 1 C8 EA825 ECU calibration dramatically increases hidden performance with up to 828HP and 862ft-lbs! IE’s advanced tuning platform releases hidden power, maximizes the drive feel, boost delivery, throttle response, and powerband to completely transform your 4.0TT engine into a supercar powerhouse. Engineered to operate on entirely stock hardware or with an upgraded intake and intercoolers for the most performance.
See performance tab for full performance results & dyno reports

INCLUDED OCTANES
Your IE tune purchase includes multiple fuel options that offer dramatic power increases. Using your IE POWERlink, switch between octanes as often as you like allowing you to run 91/93 pump gas or flash to our race gas 104 or ethanol files for a massive increase in HP & TQ in only minutes.

FULL E85
Flashing the E85 fuel map allows easy fill-ups at the pump without mixing ethanol blends. This ethanol calibration delivers a massive increase in power over regular 91/93 pump gas while keeping mid-range power in check with the factory direct injection (DI) system and avoiding lean conditions, misfires, and power loss. E85 offers amazingly fast and consistent power delivery from the pump and is much less expensive than race gas.
E40 BLEND
Ready to experience an absolute torque monster!? Mixing regular 91/93 pump gas and E85 at a 40% ethanol content (E40) creates a blend that stays within the safe limit of fuel delivery for the factory injectors. This allows the E40 calibration to produce the full torque output available from the twin-turbo V8, resulting in an insane 862ft-lbs of torque that translates to a pull with seat slamming g-forces.
An ethanol content sensor kit is highly recommended when running ethanol blends.


104 RACE GAS
In areas that do not have readily available ethanol or track enthusiasts with accessable race fuel pumps, the included 104-octane race gas file also succeeds in a considerable jump in power over regular pump gas. Sunoco GT260 Plus 104 octane is used to develop this tune and is highly recommended for the best results.
LAUNCH CONTROL
The included stage 1 transmission tune raises the factory torque limits to allow for large gains in power and torque from the ECU tune. This TCU tune also features user-adjustable launch control for chest-pounding launches from a stop and further increases acceleration. Three different launch RPMs (street, aggressive, or race) are included to dial in the fastest launch for your vehicle and tire setup.


BRAKE BOOST
Commonly used in roll racing, Brake Boosting allows you to build extra turbo boost by applying brake pressure while accelerating. Release the brake pressure for a “rolling launch” and leg up on the competition.
ADVANCED MAPPING
The factory ECU calibration is full of regulations and compromises that limits horsepower/torque and dull the power delivery and throttle feedback. IE calibrators re-tuned the complicated mass flow modeled boost control mapping with advanced strategies to achieve precision boost request targeting that results in unmatched power delivery. The throttle mapping also receives a significant rewrite to deliver a linear and predictable throttle feedback. These refinements result from months and months of fine details that dramatically improves your conneciton to the car with a much sportier and precise feel.


EGT OPTIMIZATION
Exhaust Gas Temperature (EGT) is the measurement of fuel mixtures exiting the exhaust and is used to determine the health of the fuel/air mixture entering the engine. IE engineers have spent countless hours adjusting boost air/fuel ratio, ignition timing angle, camshaft phasing, intake air temps, and much more to develop the proper EGT adjustments for ultimate engine safety without sacrificing power on all octanes.
SHIELD YOUR ENGINE
Even with the best tuning solutions, mechanical failures such as failed injectors, spark plugs, fuel pumps, or even a bad tank of gas can still pose a serious risk to your finely tuned Audi or VW engine.
iE AutoProtect is our proprietary and advanced combination of custom code and maps based calibration programming with constant cylinder monitoring. If a dangerous condition occurs, AutoProtect springs into action. Boost and power is lowered instantly and our own unique check engine light code is generated to help identify the problem. Once engine conditions are safe again, normal power is automatically restored.
AutoProtect acts as your engine’s final defense. It even protects in situations where factory calibrations fall short.
HARDWARE GUIDE
STAGE 1 COMPATABILITY
PART UPGRADE | COMPATIBLE | REQUIREMENT |
STAGE 1 TCU TUNE (INCLUDED) |
|
Required |
AIR INTAKE |
|
Recommended for the highest power gain |
TURBO INLETS |
|
Fully compatible |
INTERCOOLER |
|
Fully compatible |
CATBACK EXHAUST |
|
Fully compatible |
DOWNPIPES |
X |
Not Compatible With Stage 1 |
POWERlink Mobile
Add power to your Audi or VW and experience the game-changing freedom of mobile flashing. The IE POWERlink cable and app connect to your Apple or Android phone, giving you the power to tune your car, change octanes, upgrade stages, perform diagnostics, monitor live gauge data, and more. All from the palm of your hand! Add power anytime, anywhere -no laptop, no cord, no hassle.
Existing IE POWERlink V4 cable owners will require a free firmware update to enable Bluetooth connectivity. Simply plug in your cable to your Windows 10+ device and launch our Flash Wizard software to auto-update your cable.
Note: POWERlink Mobile requires an IE POWERlink cable, and the necessary credits required to tune your car. For further questions, contact [email protected].
Download the app today! Available on both Apple and Android.