APR ECU Upgrade for the Audi R8 4.2L FSI V8
Audi R8 4.2L Engine Software with Program Switching Technology – Choose up to 4 programs: stock, 91 oct, 93 oct, 100 oct, valet
Product Full Info
Not only does our Stage I ECU Upgrade give you higher peak numbers of 444 horsepower and 357lb-ft. of torque, but also gains of up to 24 horsepower are available at higher rpms! Expect an extra 20 HP and 13 FT-LBS over stock with 91 octane, 24 HP and 17 FT-LBS with 93 octane and 25 HP and 20 FT-LBS with 100 octane fuel.