Audi A4 B7 Apr Stage 2. APR develops and manufactures hardware software. Founded in 1997 APR is the global leader in performance aftermarket products for Volkswagen Audi Seat Skoda Porsche and other vehicles.
But what happens when APR tunes it to stage 2. Founded in 1997 APR is the global leader in performance aftermarket products for Volkswagen Audi Seat Skoda Porsche and other vehicles. The APR ECU Upgrade typically raises the power output of the 20T to 241 horsepower and 292 lb-ft of torque on 93 octane fuel.
APR s ECU Upgrade is developed to work within the OEM and Tier 1 Supplier specifications for engine component stress tolerances and performance specifications.
From 235ps to 265ps from 257lbft to 302lbft NOTE. Audi A4 S4 and RS4 B7 A4 2005-2009 S4 2006-2009 RS4 2007-2008 Note. I had a fully loaded APR Stage 2 ECU tune installed last December and after a few months driving it I feel its time to do a formal write-up and review. Over 450 horsepower Quattro all-whe.