ABT's Audi A4 facelift-based AS4 brings power upgrades and a new aerodynamic kit for both sedan and estate versions.

ABT's Audi A4 facelift-based AS4 brings power upgrades and a new aerodynamic kit for both sedan and wagon versions.

The 3.0-liter TDI engine can get a power hike to 300 hp (221 kW) and 420 lb-ft (570 Nm) of torque, up by 55 hp (41 kW) and 51 lb-ft (70 Nm). The 2.0-liter TDI is also available with a power boost in two states of tune, providing up to 205 hp (151 kW) and 310 lb-ft (420 Nm).

ABT can also tune the 1.8-liter TFSI engine to raise its power from 170 hp (125 kW) to 211 hp (155 kW), while the larger 2.0-liter TFSI churns 270 hp (199 kW), considerable more than the standard 211 hp (155 kW).

Aside from the horsepower increase, a series of aero components are available for both sedan and wagon versions of the facelifted A4. ABT offers new front spoiler, side skirts, fender inserts, rear spoiler, rear skirt and a four-pipe exhaust system. In addition, an ABT performance coil-over kit is also available, along with various 19- and 20-inch alloys.

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