There are many things you can do to transform the Peugeot 206 into a more powerful car. Some intake modifications and suspension mods are really all that is required.
Peugeot / 206 / 1.6 / XT / 110 HP 206 XT FULL + FULL at - 1146911920
Chip Tuning Box for Peugeot 206 2.0 GTI RC 177 HP Power Performance Petrol GS2
Citroen and Peugeot ecu tuning Marelli 48P - OldSkullTuning
Peugeot 206 GTI Marelli 6LP1 TunerPro xdf - OldSkullTuning
Tuning the Peugeot 206 for power and torque.
1.4 HDI 8V 68 2003 – 2008 Bosch EDC16C34 EU4 Peugeot 206 – HDI Tuning Limited
PEUGEOT 206 peugeot-206-1-4-tuning Used - the parking
PEUGEOT 206 SPORTRemapping
Database of Dyno results
PSA EW/DW engine - Wikipedia
Need for Speed Underground 2 - Peugeot 206 Ring King - Tuning And Race
Power Box Evolussem OBDII Peugeot 206+ 1.4i 75 Hp +14Hp +17Nm
13% torque with Stage 1 ECU Remap on Peugeot 206 1.4 75 bhp (1998-2009)
Peugeot 206 GTI Marelli 6LP1 TunerPro xdf - OldSkullTuning