The iE Stage 3 ECU calibration suite has been developed for the avid horsepower enthusiast seeking an expansive powerband and significant performance boost on E85 and 104 race fuel. Our Stage 3 ECU tune is meticulously crafted around complete bolt-ons and the larger factory turbos in the Audi C7 RS7. This upgrade dramatically extends the powerband on regular 91 and 93 pump gas with an exhilarating pull to redline and up to 719Hp and 768ft-lbs of torque on E85. Transform your Audi S6 or S7 into a true twin-turbocharged V8 beast!
EVERYTHING YOU NEED TO KNOW
iE STAGE 3 TUNES FOR AUDI C7 S6/S7 4.0T
LEADING FEATURES
- Up to 719HP & 768ft-lbs of torque
- Supports factory RS7 Turbos
- Builds power higher into the RPM range
- Minimal boost lag increase
- Brake boost enabled for rolling launch
- 91, 93, 104, and E85 fuel maps (AKI)
- Optimized for factory downpipes
REQUIRED HARDWARE
iE Stage 3 requires multiple hardware and fueling upgrades to support the larger turbochargers and higher power output. Use the graph below to verify the additional upgrades required before tuning your vehicle.
| PART UPGRADE | REQUIREMENT | PART NUMBER(S) |
| Factory RS7 turbos | Required | 079145722B |
| RS7 turbo inlets | Required | 07912957R |
| Air Intake System | Required | See notes below |
| Upgraded iE HPFP Kit | Required | |
| Upgraded intercooler | Recommended | Aftermarket supplied |
| Upgraded heat exchanger | Required | Aftermarket supplied |
| LPFP feed line spillter/reroute kit | Required | Aftermarket supplied |
| Factory downpipes & CATS | Required | Original stock parts |
INTAKE NOTES
Due to the larger turbo inlet of the RS7 turbos, both iE S6/S7 and RS7 air intake systems will require additional parts for installation, as outlined below.
For existing iE S6/S7 Air Intake Systems (IEINCN3), the airbox can be adapted using aftermarket RS7 turbo inlet adapter hose couplers -such as ECS Tuning part number 4348853, available with ECS Tuning RS7 turbo inlets Part Number 4460456.
For iE RS7 Air Intake Systems (IEINCX1), the intake will require two sections of 2.5" ID X 6" long generic silicone couplers. To achieve a cleaner factory look, consider sourcing two of the larger factory C7 RS7 inlet hose couplers instead. These are available under OE Part Number 079129740H (X2) to complete the installation.
STAGE 3 TRANSMISSION TUNE
The iE Stage 3 ECU tune surpasses the factory-set transmission torque limit and requires a matching transmission control unit (TCU) tune calibration. Our corresponding Stage 3 TCU tune synchronizes the transmission characteristics to match the larger turbo profiles, incorporating optimized shift points. As you progress through each gear, the DSG will shift at specific RPMs tailored to optimize the RS7 turbo powerband for the fastest acceleration on the road, track, or drag strip. These optimized shift points are active in both Drive mode and Sport Mode. Additionally, you will retain complete manual control of your shift points up to 6800RPM in manual/paddle shift mode.
Stage 3 TCU Tune is a free upgrade from Stage 2 TCU
| DSG GEAR | SHIFT RPM |
| 1st to 2nd shift | 6800 RPM |
| 2nd to 3rd shift | 6800 RPM |
| 3rd to 4th shift | 6550 RPM |
| 4th - 5th shift | 6300 RPM |
| 5th - 6th shift | 6250 RPM |
| 6th -7th shift | 6200 RPM |
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-Brenton
NEXT-LEVEL CUSTOMER SUPPORT
We sweat the details and prioritize customers in everything we do. We want what you want; a simple purchase process with products that exceed expectations. If you have any questions or require support with your tune; our educated customer support team is standing by. Purchasing an iE tune not only guarantees a quality product, it's a promise that you will always have us in your corner.
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