Stage 1 also offers a new air filter and an ECU tune that adds more boost to bring power up to 512hp (382kW) and 528lb-ft (715Nm) of torque. That's a gain of 39hp over the stock vehicle, which is good for 473hp (353kW) and 460lb-ft (620Nm) of torque. That power boost cuts 0-62mph (100km/h) times to 11.9 seconds for the six-speed manual and 11.2 seconds for the Tiptronic S.
Taking the leap up to Stage 2 nets even more power at 532hp (397kW) and 546lb-ft (740Nm) of torque through the addition of a new exhaust system. That's enough to cut the 0-62mph (100km/h) time to 3.4 seconds in the manual and 3.2 seconds in the Tiptronic S. Acceleration keeps coming, as the 0-124mph (200km/h) sprint flies by in just 11.4 and 10.7 seconds, respectively.
Finally, Stage 3 continues the theme by replacing the Stage 2 exhaust system by an even higher-performance stainless steel unit with two 3-in-1 tailpipes. Generating 566hp (416kW) and 576lb-ft (760Nm) of torque, the Stage 3 SKN Porsche sprints to 62mph (100km/h) in just 3.1 seconds and carries on to a top speed of 199mph (320km/h).
Other features of the SKN Porsche tuning program include custom wheels from OZ or BBS, upgraded shock absorbers, a precision wheel alignment and new springs. An SKN brake kit for cars without the ceramic brake disc package is also available, adding six pistons and a 370x35mm disc up front and four pistons on the same size disc in the back.
The tuning kits start at €2,990 for Stage 1, increasing €1,000 per level. All add-ons, including the wheels, suspension upgrades and brake kits, are priced extra.