Features:
- Horsepower - More horsepower throughout the whole rpm band
- Torque - More torque throughout the whole rpm band
- Warranty - APR Plus is available, providing a factory term limit matching limited powertrain warranty
- Program Switching - Change programs and access features with your cruise control stalk
- Stages - Multiple performance levels depending on installed hardware
- APR Mobile - Change programs and access features with your smart device
- Valet Mode – Neuters the vehicle, giving the driver minimal output
- Anti-Theft – Password protects driving the vehicle
- Security Lockout – Password protects program switching
- Fault Code Erase – Resets ECU fault codes and adaption on the fly
- COD Delete – Optionally disable Cylinder On Demand to keep the engine running smoothly in full cylinder mode all the time
- Fuel Grades - Multiple octanes from which to choose
- Acceleration - Accelerate faster with more power and reduced throttle lag
- Brake Boosting - Left foot braking or brake boosting added
- Speed Limiter - Go as fast as you want with the speed limiter out of the way
- Standing Limiter - Increased standing limiter for higher revving at idle
- Motorsport Limiter - With the soft limiter removed, you’ll get full power right up to the hard, “bap bap bap” redline fuel cut
- Economy - While cruising, or driving normally, your fuel economy may benefit from our optimized calibration
- Direct Port Programming - Clean and easy install through the OBD II port without removing the ECU
- Free Updates - Get free updates for life
- Guarantee - 30 day money back guarantee
| Brand | APR |
|---|---|
| Engine Aspiration | Turbocharged |
| Engine Configuration | V8 |
| Engine Displacement | 4.0L |
| Engine Family | EA824 4.0T |
| Engine Orientation | Longitudinal |
| Fuel Type | Gasoline |
| Market | NAR |
| ROW | |
| Product Type | ECU Upgrade |
| Part Number | ECU-40T-EA824-RS |
Does this fit your vehicle?
- AUDI (8)
- RS7 (8)
- BASE (5)
- PERFORMANCE (3)
- 243/4.0L V8 (8)
APR ECU UPGRADE STAGES
APR’s ECU Upgrades are available in multiple octanes levels. Each stage is fully compatible with an upgraded intake, catback exhaust, or other minor bolt on modifications.
- APR PLUS
- APR STAGE 1
- APR STAGE 2
The APR Plus ECU Upgrade includes a factory term limit matching limited powertrain warranty, and is the first step towards making more power! This simple upgrade requires no engine hardware modifications and produces 645-665 HP with 656-726 FT-LBS of torque. To get more power, the vehicle can be outfitted with an upgraded intake, cooler, catback exhaust, and various other bolt-on modifications all without requiring any new modifications to the ECU.
APR Plus is available for 91 AKI and is only available in the USA.
The APR Stage 1 ECU Upgrade is the first step towards making more power! This simple upgrade requires no engine hardware modifications and produces 645-722 HP with 656-849 FT-LBS of torque. To get more power, the vehicle can be outfitted with an upgraded intake, cooler, catback exhaust, and various other bolt-on modifications all without requiring any new modifications to the ECU.
Stage 1 is available for 91 AKI, 93 AKI, 100 AKI, and 104 AKI in North America, and 95 RON, 98 RON, 104 AKI, and 108 AKI in the Rest of the World.
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The APR Stage 2 ECU Upgrade is the next step towards making more power! This simple upgrade requires an exhaust system and no other engine hardware modifications and produces 679-759 HP with 703-889 FT-LBS of torque. To get more power, the vehicle can be outfitted with an upgraded intake, cooler, and various other bolt-on modifications all without requiring any new modifications to the ECU.
APR Stage 2 is available for 91 AKI, 93 AKI, 100 AKI, and 104 AKI in North America, and 95 RON, 98 RON, 104 AKI, and 108 AKI in the Rest of the World.
APR CALIBRATION REPORT
| STAGE (C7 / C7.5) | HP | TQ | MAX GAIN | MAX GAIN |
|---|---|---|---|---|
| Stock As Reported by VAG | 560-605 PS | 516 FT-LBS | ||
| Stock As Measured by APR | 582 HP 558 HP |
563 FT-LBS 559 FT-LBS |
||
| APR PLUS | ||||
| 91 AKI | 645 HP 665 HP |
656 FT-LBS 726 FT-LBS |
+90 HP +119 HP |
+134 FT-LBS +183 FT-LBS |
| STAGE 1 | ||||
| 91 AKI / 95 RON | 645 HP 665 HP |
656 FT-LBS 726 FT-LBS |
+90 HP +119 HP |
+134 FT-LBS +183 FT-LBS |
| 93 AKI / 95 RON | 674 HP 667 HP |
700 FT-LBS 746 FT-LBS |
+123 HP +135 HP |
+179 FT-LBS +202 FT-LBS |
| 100 AKI / 104 RON | 728 HP 697 HP |
744 FT-LBS 765 FT-LBS |
+162 HP +157 HP |
+223 FT-LBS +221 FT-LBS |
| 104 AKI / 108 RON | N/A 722 HP |
N/A 849 FT-LBS |
N/A +212 HP |
N/A +304 FT-LBS |
| STAGE 2 | ||||
| 91 AKI / 95 RON | 679 HP 687 HP |
703 FT-LBS 777 FT-LBS |
+122 HP +151 HP |
+181 FT-LBS +234 FT-LBS |
| 93 AKI / 95 RON | 712 HP 709 HP |
751 FT-LBS 797 FT-LBS |
+160 HP +168 HP |
+231 FT-LBS +254 FT-LBS |
| 100 AKI / 104 RON | 761 HP 730 HP |
793 FT-LBS 811 FT-LBS |
+203 HP +201 HP |
+273 FT-LBS +268 FT-LBS |
| 100 AKI / 104 RON | N/A 759 HP |
N/A 889 FT-LBS |
N/A +250 HP |
N/A +345 FT-LBS |
Only use fuel equal to or higher than specified. Never use a lower octane fuel. Always follow our fuel guide, especially with race fuel and Ethanol, where available. Dynos are for reference only. Results will vary. Contributing factors include the vehicle condition, vehicle setup, dyno type, dyno setup, environmental factors, fuel quality, and more. When describing fuels, the North American Region (NAR) uses the Anti-Knock Index (AKI), (RON+MON)/2, or (R+M)/2. The Rest of the World (ROW) uses RON. RON is Research Octane Number and MON is Motor Octane Number.
Dyno testing is a great way to gauge power increases over the entire rev range but may not translate to real world performance. Through GPS based acceleration testing, APR’s Engineers were able to verify increases made on the dyno translated to a faster and quicker vehicle on the street.
| STAGE | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Stock | 3.535 | 3.720 | 3.734 | 7.936 | 7.771 | 8.314 | 8.345 | 9.656 | 11.603 |
| APR STG 1 93 AKI | 3.176 | 3.306 | 3.315 | 6.776 | 6.373 | 6.899 | 6.949 | 8.022 | 9.654 |
APR EMCS PROGRAM SWITCHING
Program switching allows you to access additional program modes and features from your cruise control stalk or your smart device with APR Mobile. Depending on the ECU, available memory, and selected options, up to four program modes and all features, can be installed.
- Stock Mode - Go back to the stock power levels.
- Performance Modes - Switch between octanes and program modes.
- Valet Mode - Neuters the vehicle, giving the driver minimal output.
- Security Lockout - Password protects program switching.
- Anti-Theft - Password protects driving the vehicle.
- Fault Code Erase - Resets ECU fault codes and adaptation.
PURCHASING, GUARANTEE, AND UPDATES
How to Purchase - APR Software Upgrades are only available through Authorized APR Dealers. The dealer will connect to your vehicle, and install the update.¹
Money-Back Guarantee - Try our Software Upgrades for up to 30 days, risk free! If you are not satisfied, return to an APR Dealer to have it removed and refunded.²
Free Updates - If we make an update, add a standard feature, or if the manufacturer issues an update, you are entitled to a free update.³
