034Motorsport 2.5TFSI EVO Performance Software, 8V/8S Audi RS3/TTRS
Fuel-It VW/AUDI FLEX FUEL KITS - B8/B8.5 S4
APR - ECU Upgrade - Audi B8.5 A4 - 2.0T TFSI Valve Lift - Including Flex Fuel Vehicles
This Stage 2 Performance (E85 Tune) - 2.5 TFSI EVO is compatible with Unitronic's UniCONNECT+ cable, empowering you to tune it yourself from the comfort of your own home or garage! - Deutsche Auto Parts