IE Audi 2.5T 5 Cylinder Turbo Performance ECU Tune | Fits 8V RS3 & 8S TTRS - (RS3 17-20/TTRS 8S 16-20)

IE Audi 2.5T 5 Cylinder Turbo Performance ECU Tune

Your Audi RS3 or TTRS has a massive amount of performance hidden in its 2.5L inline 5-cylinder turbo engine. With the IE Performance ECU Tune, you can unlock supercar-level power and responsiveness in minutes from your own phone using IE POWERlink — no workshop visit required.

Maximum Performance & Features

• Huge horsepower & torque gains unlocked across the powerband
• Includes Apple & Android mobile flashing
• Stock boost control optimized for all conditions
• Multiple fuel octanes supported: 91, 93, 100, 104 & E85
• ECU safely adapts between E65-E85 ethanol blends
• Optional 1000cc injector upgrade supported
• Exhaust flaps programmed to open under boost
• Launch control boost pressure increased for quicker starts
• Increased rev limiter (stock shift points retained)
• Rev limiter raised to 7200 RPM in manual mode or with DSG flash
• Cold start rattle eliminated
• Road speed limiters removed
• Engineered for all climates & elevations
• Direct port OBD-II at-home flashing
• Easy octane switching takes only minutes
• Upgrade stages to match hardware changes
• Simple on/off feature toggling
• Read & clear diagnostic trouble codes

2.5T EVO Stage 1

The IE 2.5T Stage 1 ECU Tune delivers strong performance gains on the 5-cylinder engine, with numbers typically ranging from approximately 427–517 HP and 488–527 ft-lbs of torque depending on fuel octane selection. It’s engineered to operate on completely stock hardware or with basic bolt-on upgrades like intake, turbo inlet, and intercooler components.

2.5T EVO Stage 2

Stage 2 takes power to the next level when paired with a high-flow performance downpipe. Maximum torque and horsepower gains are realized across the entire powerband — with up to 577 HP and 592 ft-lbs of torque possible with the right fuel and hardware upgrades. Upgrading from Stage 1 to Stage 2 is simple: just pay the tune difference and flash the new map within the POWERlink app.

E85 Ethanol Support

E85 fuel unlocks the highest performance potential from IE’s ECU calibrations. With more oxygen content, cooler combustion, and increased knock resistance, E85 delivers more horsepower and torque than conventional gasoline. Safeguards are included to adjust for ethanol content as low as E60, while full E85 offers the best performance gains.

Reliability & Engineering

IE’s fully proven software brings track-ready ECU programming to your 5-cylinder turbo while retaining factory comfort and reliability. Every tuning parameter is reverse-engineered to match all factory safety protocols and sensors. Tunes are rigorously tested on in-house dyno systems — including proprietary sea level simulation technology — to ensure performance and durability in all conditions.

HARDWARE GUIDE:

Fitment Guide: