using codebreaker/armax code in pcsx2 PCSX2 is a PS2 emulator that enable us to play GT4 in a PC. Currently it can run at 10fps at very fast computer. We can race, but very slow. Only usefull for hacking. Or maybe as screen saver. Codebreaker and ARMAX is cheat tool in the form of cheat disc. This intruction is a derivative of : Convert Code Breaker Cheats to PNACH Files! PNACH files is patch needed to make a game run properly on PCSX2. If you download PCSX2 this file will be included too. get the other software needed at http://www.codemasters-project.net/portal-english/apportal/download.php?list.2 I use maxconvert_v0_71.rar I use the code from this: https://www.gtplanet.net/forum/showthread.php?t=57278 I use PAL so I use Some conversions by RogsR34UK (AR2 PAL) The master code is: 0E3C7DF2 1853E59E EE43ECFE BC04AD86 After converting to RAW I get: D0C281FC 5CAA4A1B F05B1200 005B1203 And I use All car are free code: All Cars Are Free DE88C4FE E0B99B83 DEBB4346 BCABC3B0 DEBA6992 E0AB9B83 Which after converting I get: 20163A00 24100000 2043B348 0002282D 20448D1C 24020000 It turn out that I have to change the first address digit of master code to $a to make it work. This is all my pnach file look like: Code: gametitle=Gran Turismo 4 PAL SCES51719 comment= //skip Videos patch=1,EE,00100D84,word,24100001 //skip intro movie patch=1,EE,00a50aa4,word,00000000 //master code patch=1,EE,a0C281FC,word,5CAA4A1B patch=1,EE,a05B1200,word,005B1203 //all car tune shop free patch=1,EE,20163A00,word,24100000 patch=1,EE,2043B348,word,0002282D patch=1,EE,20448D1C,word,24020000 I am happy that I can finally buy the tuning part and car to my heart content . I feel stupid not notice this before. For those of you wondering how I can play GT4 in a PC, visit www.pcsx2.net, the forum too. I use pcsx29-icc-050810-sse2.exe.