Stage 2 ECU tune that provides the necessary calibration for aftermarket downpipes and aggressive exhaust crackles while maintaining Stage 1 power levels for 2017-2020 Audi B9 S4, S5, and SQ5 models.
Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!
Upgrades existing APR Stage I software to Stage II Supercharger Pulley upgrade software
Call In Or Chat For Best Price! For use with the APR Supercharger Pulley Upgrades - Existing APR Stage 1 software must be present for thi
*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.
Stage 1 ECU tune that unleashes up to 505 horsepower and 585 lb-ft of torque for 2017-2020 Audi B9 S4, S5, and SQ5 models directly from your smartphone.
Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!
Unleash massive plug-and-play power using your factory hardware and standard pump gas.
Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!
Upgrade existing stage 1 and stage 2 software to V2 & V3
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio. For existing Stage 1 or Stage 2 customers with an ECU upgrade installed before 5/14/2015. Vehicle must be brought to ECS Tuning for programming.
*Sale only applies to purchases to ECU with 3 or 4 program options
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio.
*Sale only applies to purchases to ECU with 3 or 4 program options
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio.
All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.
Lifetime Replacement
