German tuner ABT Sportsline has released their program for the A4 and A4 Avant, called the AS4. The kit features engine upgrades, suspension kit, wheels and aerodynamic components.
The 3.0 TDI in its ABT version has 300hp and 570Nm offering 55hp and 70Nm more. The 2.0 liter diesel gets 205hp and 420Nm. The two turbo petrol engines also received an upgrade. The 1.8 TFSI ABT has 211hp with a serial power of 170hp. The 2.0 TFSI got 270hp up from 211hp.
The A4 limo and the A4 Avant also got a series of aero components. The complete kit features a front spoiler, fender inserts and side skirts. The rear end has a striking spoiler, rear skirt and four end pipes.
The suspension springs lower the car’s center of gravity 30mm front and 40mm rear. A coil-over kit lowers the Audi A4 up to 60mm. Stopping power is achieved using a Sport Brake System with 380x34mm discs and black painted brake callipers with ABT logo. ABT wheels CR and DR are available in 19 and 20 inches.