XGRA: Extreme-G Racing Association Hints for PlayStation 2
Also on: XBox
Enter 'FREEPLAY' as your name to get all racing levels...
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To break the sound barrier just go onto Siris Canyon and once you reach around the end of the loop use your boost (best to have 400 G engine) and wait.
The sound will disapear and then come back!!!!!!!
No thumbs
yet
Also on: XBox, check out those pages for more help with this game.