Porsche 911 3.0T Carrera S / 4S 420bhp tuning file

With a bespoke remap the Porsche 911 3.0T Carrera S / 4S 420bhp gains +55 bhp and +120 Nm, rising from 420 bhp / 500 Nm to 475 bhp / 620 Nm (13% more power). We build each tuning file around the software number of your read on the Siemens/Continental SDI21.X, so nothing generic goes back into the car. Add DECAT, DTC Removal, FLAPS, Pop & Bang Crackle map to the same file if needed.

Who is this remap for?

On a turbo petrol, a remap sharpens throttle response and pulls harder through the mid-range. For the best result we recommend running it on super unleaded (97–99 RON). 420 → 475 bhp equals roughly 313 → 354 kW.

Figures are guide values from our rolling road and comparable vehicles. Results depend on the vehicle's condition, hardware and fuel quality. Remapping in the UK: let your insurer know about the modification. DPF, EGR and AdBlue solutions are supplied for off-road and motorsport use only and are not legal for use on UK roads.