The Porsche Boxster 2.9i 211hp (2005 - 2011 ( 987 )) produces 211bhp and 290Nm in standard form. Our Stage 1 ECU tuning file raises output to 275bhp and 310Nm, a gain of 64bhp and 20Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.