Criticize the Audi RS7 in every way you want, but the speedy Sportback certainly isn’t lacking in the power department. With 600 PS (591 horsepower) and 591 pound-feet (800 Newton-meters) on tap, the twin-turbo 4.0-liter V8 shared with the RS6 Avant and RS Q8 is a force to be reckoned with. For those who want even more, tuners have already taken notice of Audi Sport’s latest RS models.
Motoren Technik Mayer has been working on the new RS7 Sportback and they’ve already developed a stage 2 kit. It’ll set you back a cool $16,669 and will take the V8 to 810 PS (800 horsepower) and a mountain-shaking 1,060 Newton-meters (782 pound-feet) of torque. It goes without saying that extracting so much power from the 4.0-liter unit required more than just an ECU remap as the tuner also installed a beefier air filter box and tweaked the exhaust system.
In addition, the RS7 with the stage 2 kit boasts custom suction hoses, a revised intake manifold, and a modified speed limiter. MTM also had to tweak the transmission control unit of the eight-speed Tiptronic automatic transmission to make sure it “knows” about the extra power delivered by the engine. The entire process takes approximately five working days and is fully reversible. In other words, you can bring back the car to its original factory configuration.
While MTM does have a branch in the United States, the ECU remap can be done only in Wettstetten, a municipality in the district of Eichstätt in Bavaria in Germany. As if the healthy power boost wasn’t enough, a stage 3 program will take the engine to more than 900 horsepower, so you’ll get nearly the same amount of power as the original Bugatti Veyron with eight fewer cylinders and half the displacement.
If you’re finding this kind of power too much to handle and yet you want some extra oomph for your new RS7, the lesser stage 1 costs $10,999 and takes the V8 to 786 PS (775 hp) and 1,030 Nm (760 lb-ft).