A Porsche Boxster 2.5i 204hp (1996 – 2004 ( 986 )) makes about 220 hp and 280 Nm with Stage 1 software, compared with 204 hp and 245 Nm from the factory. That is 16 hp and 35 Nm extra.

This is a petrol engine with a displacement of 2,480 cc and engine code M96/20. The engine is controlled by the Bosch M5.2.2. The software file can be written with tools such as Alientech KESS3, Alientech KESSv2, Bitbox and Dimsport New Genius.

Besides Stage 1, the following options are available for this vehicle: DECAT, FLAPS and Vmax.

Frequently asked questions

How much power and torque does a Porsche Boxster 2.5i 204hp gain with Stage 1?

About 16 hp and 35 Nm: from 204 hp / 245 Nm to roughly 220 hp / 280 Nm. The exact gain depends on engine condition and fuel quality.

Which ECU does a Porsche Boxster 2.5i 204hp use?

Bosch M5.2.2.

Which tools can read a Porsche Boxster 2.5i 204hp?

Alientech KESS3, Alientech KESSv2, Bitbox and Dimsport New Genius.

Which extra options are available for a Porsche Boxster 2.5i 204hp?

DECAT, FLAPS and Vmax.

Figures are indicative and vehicle specific. Check the regulations that apply in your country before modifying engine software.