forza 4 help

hello i have booternet's forza 4 iso mods and i cant seem to get my cars to go 550mph can anyone help me as i have messaged him on here and xbox and he is not getting back to me

 

IDK what mods he used in his DB but i doubt it goes to 550MPH..

Anyway if it does, max upgrades and tune setup every gear + final drive to be speed...

if it still doesnt then make it to its km/h and if it goes past 550 then he means kmph

 

i have just invited you to a party on xbox live

 

1 problem.... i like never go online these days. and im banned from forza 4 any how hehe

 

well can ou recommend me any forza 4 mods with loads of speed cars???

 

i believe a guy on here called god 420 and feral did speed mods but idk how fast they got

 

sorry for doub post but i can make u a custom db sometime if u want?? hit me up on aim:: xbox360evolution

 

i got mad speeds with the bugatti veyron something like 220 mph round corners someone said the nissan 510 is even faster if setup right gelboy