Overclock can be harm to your hardware.
Use at your own risk.PLEASE!
Check available models and use free version first before you buy.
You must update over v0.2.0.0 for correct core voltage control.*GT-I9000 Gingerbread 2.3.3 is available!
*GalaxyS2 in Europe is available! (confirmed by blaaez at xda)
*GalaxyS2 in Korea is available!
*Galaxy S Gingerbread 2.3.3(only in Korea) is available!What is this?
This is for family of Galaxy S and Galaxy S II devices.
You can set maximum CPU...read more about Tegrak Overclock on the donwload page