A Citro�n C8 2.0 HDi 163hp makes about 190 hp and 420 Nm with Stage 1 software, compared with 163 hp and 370 Nm from the factory. That is 27 hp and 50 Nm extra.
This is a diesel engine with a displacement of 1,997 cc and engine code DW10CTED4. The engine is controlled by the Siemens/Continental SID803. The software file can be written with tools such as CMD CMDFlash.
Frequently asked questions
How much power and torque does a Citro�n C8 2.0 HDi 163hp gain with Stage 1?
About 27 hp and 50 Nm: from 163 hp / 370 Nm to roughly 190 hp / 420 Nm. The exact gain depends on engine condition and fuel quality.
Which ECU does a Citro�n C8 2.0 HDi 163hp use?
Siemens/Continental SID803.
Which tools can read a Citro�n C8 2.0 HDi 163hp?
CMD CMDFlash.
Figures are indicative and vehicle specific. Check the regulations that apply in your country before modifying engine software.

