2006 Audi S4 quattro Cabriolet AWD

This 2006 Audi S4 Avant represents a rare opportunity to own a fully built, enthusiast owned performance wagon with extensive upgrades and nearly 8,000 in recent service. Finished in black over a black leather sport interior, this S4 blends the practicality of an Avant with the performance of Audi's legendary 4.2L V8 and 6-speed manual transmission. At approximately 80,000 miles, the original engine was replaced following a track-related failure. The replacement engine had roughly 7,000 miles and was refreshed with new timing components, water pump, coil packs, oxygen sensors, and starter. Power is delivered through a belt-driven JH Motorsports Stage 1 supercharger, paired with a Stage 2 air to water intercooler, oil cooler, and upgraded fueling. Performance is further enhanced by a JHM Stage 5 clutch and lightweight flywheel, short shifter, JHM 4-1 center differential, and Wavetrac limited-slip differentials. Suspension and braking upgrades include Ohlins rear dampers, BC Racing front coilovers, 034Motorsport components, upgraded sway bars, and a JHM big brake kit, creating a confident and highly capable driving experience. Cosmetically, the S4 features subtle RS4-inspired and carbon fiber enhancements, while the interior includes carbon trim, a weighted shift knob, digital performance gauge, and upgraded infotainment for a driver-focused cockpit. Recent service totaling 7,843.72 includes a comprehensive inspection, full 75k mile service, valve cover gasket replacement, shifter adjustment, suspension repairs, sway bar and end link replacement, new front coilovers, and a four wheel alignment, ensuring this S4 is fully sorted and ready to enjoy.

Additional Information

4WD/AWD,ABS Brakes,Air Conditioning,Alloy Wheels,AM/FM Radio,Automatic Headlights,Cargo Area Cover,Cargo Net,Cassette Player,CD Changer,CD Player,Child Safety Door Locks,Chrome Wheels,Daytime Running Lights,Deep Tinted Glass,Driver Airbag,Electrochromic Exterior Rearview Mirror,Electrochromic Interior Rearview Mirror,Electronic Parking Aid,First Aid Kit,Fog Lights,Front Power Lumbar Support,Front Power Memory Seat,Front Side Airbag,Front Side Airbag with Head Protection,Full Size Spare Tire,Genuine Wood Trim,Heated Exterior Mirror,Interval Wipers,Leather Seat,Leather Steering Wheel,Navigation Aid,Passenger Airbag,Passenger Multi-Adjustable Power Seat,Power Adjustable Exterior Mirror,Power Door Locks,Power Trunk Lid,Power Windows,Rain Sensing Wipers,Rear Spoiler,Rear Window Defogger,Rear Wiper,Remote Ignition,Run Flat Tires,Second Row Heated Seat,Second Row Side Airbag,Separate Driver/Front Passenger Climate Controls,Sliding Rear Pickup Truck Window,Steel Wheels,Steering Wheel Mounted Controls,Tachometer,Telescopic Steering Column,Tilt Steering Column,Tire Pressure Monitor,Traction Control,Trip Computer,Vehicle Stability Control System