Impressive as the 572HP and 479lb.ft of torque produced by the Audi RS6’s twin-turbocharged V10 engine may sound, there’s always room for improvement. APS, the UK importer of the Swiss tuning brand Sportec, has launched two upgrade packages for the sedan and station-wagon (Avant) variants of the RS6.
The first stage adds a remapped ECU boosting output to 650-horsepower at 6,300 rpm, coupled to 540lb.ft (740Nm) of torque between 2500-4,000 rpm. With this kit, the APS Sportec-prepped RS6 reaches 62mph (100km/h) in 4.4 seconds, while top speed is limited to 190mph or 305 km/h.
The Sportec Stage One upgrade is priced at £2800, equal to US$4,262 or €3,165 at today’s exchange rates.
For those with spicier tastes, APS Sportec offers the Stage Two conversion that consists of a reprogrammed ECU, complete with performance optimization of fuelling, ignition and boost parameters, in parallel with the fitment of emissions compliant sports catalysts.
The result is 700-horsepower at 6,200 rpm and 584lb.ft (800Nm) between 3,000-6,200 rpm, which translates to a 0-62mph (100km/h) sprint time of 4.2 seconds and a limited top speed of 190mph or 305 km/h (same as the Stage One package).
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