The UK tuner APS partnered up with the Swiss aftermarket expert Sportec to release an all new package for the twin turbo 2010 Audi RS6. Packing a 5.0-liter V10 under the hood, the exclusive Audi delivers 572 hp and 479 lb ft of torque to the drivetrain. The build for this RS6 wasn’t that big of a challenge for the tuning companies however, and they’ve developed two stages of enhancements. For the first kit, stage one is suitable for both the Audi RS6 and Audi Avant variants, consisting of an ECU remapping. After the tuning was performed, the V10 engine now produces 650 horsepower at 6,300 rpm and 740 Nm of torque between 2,500-4,000 rpm.