Spyder 3.4i 320hp Stage 1 tuning

The Porsche Boxster Spyder 3.4i 320hp produces 320 hp and 360 Nm as standard. The YASTUNING Stage 1 remap file takes it to 338 hp and 385 Nm, a gain of +18 hp and +25 Nm. Engine code MA1.21. ECU: Siemens/Continental SDI3. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.