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Best-SellerAPRAPR Ultralink Fits Most APR ECU/TCU supported vehicles - Audi / VW / Porsche / Bentley / LamborghiniPart# EM100040Free ShippingIn Stock
$184.95
$659.95
APRAPR ECU Upgrade - 3.0T EA837 V6 (Simos 8.5) 3.0T V6 Engine Tune for the Audi A6 Quattro 12-15, A7 Quattro 12-15, A8 Quattro 13-14, Q5 13-17, S4 13-16, S5 13-17, SQ5 14-17$659.95
APRAPR ECU Upgrade - 3.0T EA839 V6 (B9) (S4/S5/SQ5) 3.0T V6 Engine Tune for the Audi S4 18-24, S5 18-24, S5 Sportback 18-24, SQ5 18-24, SQ5 Sportback 21-24$999.95
APRAPR ECU Upgrade - 4.2L EA824 FSI V8 (S5) 4.2L V8 Engine Tune for the Audi A6 Quattro 07-11, A8 Quattro 07-12, Q7 07-10; S5 08-12; Volkswagen Touareg 07-09$559.95
APRAPR TCU Upgrade - 8 Speed Tiptronic (AL552 ZF 8HP55) (B9/B9.5) Fits 2018-2025 Audi B9/B9.5 equipped AL552 vehicles. 2023-2025 locked TCU's now fully supported. One dealer visit unlocks it, flash and update anytime after that with Ultralink.$649.95
TrendingAPRAPR Throttle Booster - w/ Wireless Controller and Bluetooth Mobile App Fits Various 2004-2025 VW/Audi/Bentley/Lamborghini/Porsche VehiclesIn Stock
$299.95
Audi S5 Software & Tuning
APR’s software and tuning solutions deliver refined performance engineering—precision ECU and TCU calibrations, along with inline modules, that elevate power, transmission response and driving dynamics while maintaining the integrity of your European vehicle’s factory systems.




