how can i make this car more fast but with all security measures??????
C to Back exhaust system and induction kit!!
You should work on the engine to make it stronger, then add a turbo. You can obtain about 100HP and if you also work on the brakes and suspensions you can keep all the security measures. But if you don't want to spend too much you can work on the ecu for about 3-4 Hp and a better acceleration.