By removing the speed limiter, ABT Sportsline has liberated the performance wagon to 180 mph.
Audi aftermarket specialist ABT Sportsline has introduced some upgrades for the 2013 Audi RS4 Avant, the highlight of which is the removal of the sporting brake's electronic speed limiter. The result? A top speed of 180 mph. The tuner also replaced the standard exhaust with a new stainless-steel system with catalytic converters for a significantly improved engine note while easing the exhaust flow. Output of the 4.2-liter V8 engine remains unchanged at 450 horsepower and 317 pound-feet of torque.