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2018-2025 Audi S4 Badges

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APR
ECU Upgrade - 1.8T EA888 Gen 3 IS12 (Transverse)
1.8T Engine Tune for the Audi A3 15-16; Volkswagen Golf 15-18, Golf Alltrack 17-19, Golf SportWagen 15-19​
Part# ECU-18T-EA888-3-T-IS12
$559.95
APR
ECU Upgrade - 2.0T EA888 Gen 3 IS20 (Transverse) (MQB)
2.0T Engine Tune for the Audi A3 Quattro 15-20, Q3 19-21, TT Quattro 16-23; Volkswagen GTI 15-21, Jetta 19-24
Part# ECU-20T-EA888-3-T-IS20
$559.95

2018-2025 Audi S4 Badges

Enhance the performance and driving experience of your 2018–2025 Audi S4 with APR’s industry-leading aftermarket parts and tuning solutions. From ECU upgrades and turbo enhancements to exhaust systems and intakes, APR offers precision-engineered components designed to deliver noticeable gains in horsepower, torque, and overall responsiveness. Whether you're looking for daily drivability or track-ready power, APR's performance parts bring out the best in your B9/B9.5 S4 with proven reliability

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