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The ultimate "no-limits" tier that provides access to every stage and map, including Stage 3 big turbo files for maximum horsepower.
Stage 1 ECU tune designed for factory hardware on pump gas to deliver thrilling, track-ready performance for Audi B9 and B9.5 RS4 and RS5 models directly from your smartphone.
Gains of up to 53hp and 80tq on 91 Octane.
For vehicles with FSI engines only.
Gains of up to 55hp and 61tq depending on fuel type.
Gains of up to 69hp and 90tq depending on fuel type.
For vehicles with TSI engines only
Audi left performance on the table. iE sets it free by safely reprogramming your engine computer to unleash heavy-hitting acceleration, sharper response, and a completely new personality... all backed by AutoProtect.
Step up the aggression with single-pulley support, E30 ethanol blends, and rowdy motorsport features like launch control and exhaust crackles.
Audi left performance on the table. iE sets it free by safely reprogramming your engine computer to unleash heavy-hitting acceleration, sharper response, and a completely new personality... all backed by AutoProtect.
Stage 1 ECU tune that unlocks up to 828 horsepower for C8 Audi RS6, RS7, S8, SQ7, SQ8, and RSQ8 models directly from your smartphone.
2024 model years are equipped with a new ECU version and are not currently compatible. See notes for more information.
Pure900 hybrid turbo ECU tune that unlocks up to 903 horsepower for C8 Audi RS6, RS7, S8, SQ7, SQ8, and RSQ8 models directly from your smartphone.
2024 model years are equipped with a new ECU version and are not currently compatible. See notes for more information.
Stage 1 ECU tune that adds up to 314 horsepower and 396 lb-ft of torque for Audi B9 Q5 2.0T models directly from your smartphone.
Compatible with 2017-2020 model years only, and is incompatible with the new 2021+ ECU variations
The perfect entry point for a stock car, delivering a massive Stage 1 power bump with no additional hardware required.
Maximize your airflow and unlock aggressive performance—complete with optional motorsport-inspired exhaust crackles.
*Sale applies only to ECU with 3 or 4 program purchase.
Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.
This product was last offered at the strikethrough price on
09-28-2026
Lifetime Replacement
For customers that already have APR software on their car and are upgrading to a K04
Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.
This product was last offered at the strikethrough price on
09-28-2026
Lifetime Replacement
Upgrade your tune with Launch Control
Only to be purchased in conjunction with another tune
Lifetime Replacement
