Integrated Engineering Performance TCU Tune | MK8 R · 8Y S3 | 2.0L Turbo I4

Unlock the full potential of your iE ECU tune with our matching TCU (Transmission Control Unit) tune. Enhancing shift speeds, removing torque limiters, preventing transmission slip, and introducing adjustable launch control, this upgrade delivers a dramatic improvement in launch power, pulling force, shift responsiveness, and overall acceleration. Factory transmission calibrations include torque limiters that reduce engine power when power limits are exceeded. The iE TCU Tune raises these limits, allowing your engine tune to deliver full power and torque. For models with locked TCUs or customers who don’t purchase the TCU tune, iE’s innovative ECU tune communicates torque from the ECU side, ensuring full horsepower and torque output without relying on a reduced power “Low Torque” file or tune. Get ready for explosive launches with iE’s variable launch control. Choose between three launch RPM settings to dial in the perfect balance of grip and power for your vehicle’s setup. Each settin