RS3 8V Tuning and Electronics

Buy tuning software, ECU and DSG upgrades, cables, connectors, flashes and tunes! Adjusting the fuel, air, timing and transmission shift points is the best way to ensure all your engine upgrades are working together properly and you are getting the most power out of your car! Some upgrades you'll be able to install yourself and others may require professional assistance or dyno time. For 2017-2020 RS3 8V 2.5TFSI DAZA and DNWA.